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diff --git a/src/proto/grpc/channelz/channelz.proto b/src/proto/grpc/channelz/channelz.proto
deleted file mode 100644
index 14db66a654..0000000000
--- a/src/proto/grpc/channelz/channelz.proto
+++ /dev/null
@@ -1,456 +0,0 @@
-// Copyright 2018 gRPC authors.
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-
-syntax = "proto3";
-
-package grpc.channelz;
-
-import "google/protobuf/any.proto";
-import "google/protobuf/duration.proto";
-import "google/protobuf/timestamp.proto";
-import "google/protobuf/wrappers.proto";
-
-// See go/grpc-channelz.
-
-// Channel is a logical grouping of channels, subchannels, and sockets.
-message Channel {
-  // The identifier for this channel.
-  ChannelRef ref = 1;
-  // Data specific to this channel.
-  ChannelData data = 2;
-  // At most one of 'channel_ref+subchannel_ref' and 'socket' is set.
-
-  // There are no ordering guarantees on the order of channel refs.
-  // There may not be cycles in the ref graph.
-  // A channel ref may be present in more than one channel or subchannel.
-  repeated ChannelRef channel_ref = 3;
-
-  // At most one of 'channel_ref+subchannel_ref' and 'socket' is set.
-  // There are no ordering guarantees on the order of subchannel refs.
-  // There may not be cycles in the ref graph.
-  // A sub channel ref may be present in more than one channel or subchannel.
-  repeated SubchannelRef subchannel_ref = 4;
-
-  // There are no ordering guarantees on the order of sockets.
-  repeated SocketRef socket = 5;
-}
-
-// Subchannel is a logical grouping of channels, subchannels, and sockets.
-// A subchannel is load balanced over by it's ancestor
-message Subchannel {
-  // The identifier for this channel.
-  SubchannelRef ref = 1;
-  // Data specific to this channel.
-  ChannelData data = 2;
-  // At most one of 'channel_ref+subchannel_ref' and 'socket' is set.
-
-  // There are no ordering guarantees on the order of channel refs.
-  // There may not be cycles in the ref graph.
-  // A channel ref may be present in more than one channel or subchannel.
-  repeated ChannelRef channel_ref = 3;
-
-  // At most one of 'channel_ref+subchannel_ref' and 'socket' is set.
-  // There are no ordering guarantees on the order of subchannel refs.
-  // There may not be cycles in the ref graph.
-  // A sub channel ref may be present in more than one channel or subchannel.
-  repeated SubchannelRef subchannel_ref = 4;
-
-  // There are no ordering guarantees on the order of sockets.
-  repeated SocketRef socket = 5;
-}
-
-// These come from the specified states in this document:
-// https://github.com/grpc/grpc/blob/master/doc/connectivity-semantics-and-api.md
-message ChannelConnectivityState {
-  enum State {
-    UNKNOWN = 0;
-    IDLE = 1;
-    CONNECTING = 2;
-    READY = 3;
-    TRANSIENT_FAILURE = 4;
-    SHUTDOWN = 5;
-  }
-  State state = 1;
-}
-
-message ChannelData {
-
-  ChannelConnectivityState state = 1;
-
-  // The target this channel originally tried to connect to.  May be absent
-  string target = 2;
-
-  ChannelTrace trace = 3;
-
-  // The number of calls started on the channel
-  int64 calls_started = 4;
-  // The number of calls that have completed with an OK status
-  int64 calls_succeeded = 5;
-  // The number of calls that have a completed with a non-OK status
-  int64 calls_failed = 6;
-
-  // The last time a call was started on the channel.
-  google.protobuf.Timestamp last_call_started_timestamp = 7;
-}
-
-// A trace event is an interesting thing that happened to a channel or
-// subchannel, such as creation, address resolution, subchannel creation, etc.
-message ChannelTraceEvent {
-  // High level description of the event.
-  string description = 1;
-  // The supported severity levels of trace events.
-  enum Severity {
-    CT_UNKNOWN = 0;
-    CT_INFO = 1;
-    CT_WARNING = 2;
-    CT_ERROR = 3;
-  }
-  // the severity of the trace event
-  Severity severity = 2;
-  // When this event occurred.
-  google.protobuf.Timestamp timestamp = 3;
-  // ref of referenced channel or subchannel.
-  // Optional, only present if this event refers to a child object. For example,
-  // this field would be filled if this trace event was for a subchannel being
-  // created.
-  oneof child_ref {
-    ChannelRef channel_ref = 4;
-    SubchannelRef subchannel_ref = 5;
-  }
-}
-
-message ChannelTrace {
-  // Number of events ever logged in this tracing object. This can differ from
-  // events.size() because events can be overwritten or garbage collected by
-  // implementations.
-  int64 num_events_logged = 1;
-  // Time that this channel was created.
-  google.protobuf.Timestamp creation_time = 2;
-  // List of events that have occurred on this channel.
-  repeated ChannelTraceEvent events = 3;
-}
-
-message ChannelRef {
-  // The globally unique id for this channel.  Must be a positive number.
-  int64 channel_id = 1;
-  // An optional name associated with the channel.
-  string name = 2;
-  // Intentionally don't use field numbers from other refs.
-  reserved 3, 4, 5, 6;
-}
-
-message SubchannelRef {
-  // The globally unique id for this subchannel.  Must be a positive number.
-  int64 subchannel_id = 7;
-  // An optional name associated with the subchannel.
-  string name = 8;
-  // Intentionally don't use field numbers from other refs.
-  reserved 1, 2, 3, 4, 5, 6;
-}
-
-message SocketRef {
-  int64 socket_id = 3;
-  // An optional name associated with the socket.
-  string name = 4;
-  // Intentionally don't use field numbers from other refs.
-  reserved 1, 2, 5, 6, 7, 8;
-}
-
-message ServerRef {
-  // A globally unique identifier for this server.   Must be a positive number.
-  int64 server_id = 5;
-  // An optional name associated with the server.
-  string name = 6;
-  // Intentionally don't use field numbers from other refs.
-  reserved 1, 2, 3, 4, 7, 8;
-}
-
-message Server {
-  ServerRef ref = 1;
-  ServerData data = 2;
-
-  // The sockets that the server is listening on.  There are no ordering
-  // guarantees.
-  repeated SocketRef listen_socket = 3;
-}
-
-message ServerData {
-  ChannelTrace trace = 1;
-
-  // The number of incoming calls started on the server
-  int64 calls_started = 2;
-  // The number of incoming calls that have completed with an OK status
-  int64 calls_succeeded = 3;
-  // The number of incoming calls that have a completed with a non-OK status
-  int64 calls_failed = 4;
-
-  // The last time a call was started on the server.
-  google.protobuf.Timestamp last_call_started_timestamp = 5;
-}
-
-// Information about an actual connection.  Pronounced "sock-ay".
-message Socket {
-  SocketRef ref = 1;
-
-  SocketData data = 2;
-  // The locally bound address.
-  Address local = 3;
-  // The remote bound address.  May be absent.
-  Address remote = 4;
-  Security security = 5;
-
-  // Optional, represents the name of the remote endpoint, if different than
-  // the original target name.
-  string remote_name = 6;
-}
-
-message SocketData {
-  // The number of streams that have been started.
-  int64 streams_started = 1;
-  // The number of streams that have ended successfully with the EoS bit set for
-  //  both end points
-  int64 streams_succeeded = 2;
-  // The number of incoming streams that have a completed with a non-OK status
-  int64 streams_failed = 3;
-
-  // The number of messages successfully sent on this socket.
-  int64 messages_sent = 4;
-  int64 messages_received = 5;
-
-  // The number of keep alives sent.  This is typically implemented with HTTP/2
-  // ping messages.
-  int64 keep_alives_sent = 6;
-
-  // The last time a stream was created by this endpoint.  Usually unset for
-  // servers.
-  google.protobuf.Timestamp last_local_stream_created_timestamp = 7;
-  // The last time a stream was created by the remote endpoint.  Usually unset
-  // for clients.
-  google.protobuf.Timestamp last_remote_stream_created_timestamp = 8;
-
-  // The last time a message was sent by this endpoint.
-  google.protobuf.Timestamp last_message_sent_timestamp = 9;
-  // The last time a message was received by this endpoint.
-  google.protobuf.Timestamp last_message_received_timestamp = 10;
-
-  // The amount of window, granted to the local endpoint by the remote endpoint.
-  // This may be slightly out of date due to network latency.  This does NOT
-  // include stream level or TCP level flow control info.
-  google.protobuf.Int64Value local_flow_control_window = 11;
-
-  // The amount of window, granted to the remote endpoint by the local endpoint.
-  // This may be slightly out of date due to network latency.  This does NOT
-  // include stream level or TCP level flow control info.
-  google.protobuf.Int64Value  remote_flow_control_window = 12;
-
-  repeated SocketOption option = 13;
-}
-
-message Address {
-  message TcpIpAddress {
-    // Either the IPv4 or IPv6 address in bytes.  Will either be 4 bytes or 16
-    // bytes in length.
-    bytes ip_address = 1;
-    // 0-64k, or -1 if not appropriate.
-    int32 port = 2;
-  }
-  // A Unix Domain Socket address.
-  message UdsAddress {
-    string filename = 1;
-  }
-  // An address type not included above.
-  message OtherAddress {
-    // The human readable version of the value.
-    string name = 1;
-    // The actual address message.
-    google.protobuf.Any value = 2;
-  }
-
-  oneof address {
-    TcpIpAddress tcpip_address = 1;
-    UdsAddress uds_address = 2;
-    OtherAddress other_address = 3;
-  }
-}
-
-message Security {
-  message Tls {
-    // The key exchange used.  e.g. X25519
-    string key_exchange = 1;
-    // The cipher used. e.g. AES_128_GCM.
-    string cipher = 2;
-    // the certificate used by this endpoint.
-    bytes local_certificate = 3;
-    // the certificate used by the remote endpoint.
-    bytes remote_certificate = 4;
-  }
-  message OtherSecurity {
-    // The human readable version of the value.
-    string name = 1;
-    // The actual security details message.
-    google.protobuf.Any value = 2;
-  }
-  oneof model {
-    Tls tls = 1;
-    OtherSecurity other = 2;
-  }
-}
-
-message SocketOption {
-  string name = 1;
-  // The human readable value of this socket option.  At least one of value or
-  // additional will be set.
-  string value = 2;
-  // Additional data associated with the socket option.  At least one of value
-  // or additional will be set.
-  google.protobuf.Any additional = 3;
-}
-
-// For use with SocketOption's additional field.  This is primarily used for
-// SO_RCVTIMEO and SO_SNDTIMEO
-message SocketOptionTimeout {
-  google.protobuf.Duration duration = 1;
-}
-
-message SocketOptionLinger {
-  bool active = 1;
-  google.protobuf.Duration duration = 2;
-}
-
-// Tcp info for SOL_TCP, TCP_INFO
-message SocketOptionTcpInfo {
-  uint32 tcpi_state = 1;
-
-  uint32 tcpi_ca_state = 2;
-  uint32 tcpi_retransmits = 3;
-  uint32 tcpi_probes = 4;
-  uint32 tcpi_backoff = 5;
-  uint32 tcpi_options = 6;
-  uint32 tcpi_snd_wscale = 7;
-  uint32 tcpi_rcv_wscale = 8;
-
-  uint32 tcpi_rto = 9;
-  uint32 tcpi_ato = 10;
-  uint32 tcpi_snd_mss = 11;
-  uint32 tcpi_rcv_mss = 12;
-
-  uint32 tcpi_unacked = 13;
-  uint32 tcpi_sacked = 14;
-  uint32 tcpi_lost = 15;
-  uint32 tcpi_retrans = 16;
-  uint32 tcpi_fackets = 17;
-
-  uint32 tcpi_last_data_sent = 18;
-  uint32 tcpi_last_ack_sent = 19;
-  uint32 tcpi_last_data_recv = 20;
-  uint32 tcpi_last_ack_recv = 21;
-
-  uint32 tcpi_pmtu = 22;
-  uint32 tcpi_rcv_ssthresh = 23;
-  uint32 tcpi_rtt = 24;
-  uint32 tcpi_rttvar = 25;
-  uint32 tcpi_snd_ssthresh = 26;
-  uint32 tcpi_snd_cwnd = 27;
-  uint32 tcpi_advmss = 28;
-  uint32 tcpi_reordering = 29;
-}
-
-service Channelz {
-  // Gets all root channels (e.g. channels the application has directly
-  // created). This does not include subchannels nor non-top level channels.
-  rpc GetTopChannels(GetTopChannelsRequest) returns (GetTopChannelsResponse);
-  // Gets all servers that exist in the process.
-  rpc GetServers(GetServersRequest) returns (GetServersResponse);
-  // Gets all server sockets that exist in the process.
-  rpc GetServerSockets(GetServerSocketsRequest) returns (GetServerSocketsResponse);
-  // Returns a single Channel, or else a NOT_FOUND code.
-  rpc GetChannel(GetChannelRequest) returns (GetChannelResponse);
-  // Returns a single Subchannel, or else a NOT_FOUND code.
-  rpc GetSubchannel(GetSubchannelRequest) returns (GetSubchannelResponse);
-  // Returns a single Socket or else a NOT_FOUND code.
-  rpc GetSocket(GetSocketRequest) returns (GetSocketResponse);
-}
-
-message GetServersRequest {
-  // start_server_id indicates that only servers at or above this id should be
-  // included in the results.
-  int64 start_server_id = 1;
-}
-
-message GetServersResponse {
-  // list of servers that the connection detail service knows about.  Sorted in
-  // ascending server_id order.
-  repeated Server server = 1;
-  // If set, indicates that the list of servers is the final list.  Requesting
-  // more servers will only return more if they are created after this RPC
-  // completes.
-  bool end = 2;
-}
-
-message GetServerSocketsRequest {
-  int64 server_id = 1;
-  // start_socket_id indicates that only sockets at or above this id should be
-  // included in the results.
-  int64 start_socket_id = 2;
-}
-
-message GetServerSocketsResponse {
-  // list of socket refs that the connection detail service knows about.  Sorted in
-  // ascending socket_id order.
-  repeated SocketRef socket_ref = 1;
-  // If set, indicates that the list of sockets is the final list.  Requesting
-  // more sockets will only return more if they are created after this RPC
-  // completes.
-  bool end = 2;
-}
-
-message GetTopChannelsRequest {
-  // start_channel_id indicates that only channels at or above this id should be
-  // included in the results.
-  int64 start_channel_id = 1;
-}
-
-message GetTopChannelsResponse {
-  // list of channels that the connection detail service knows about.  Sorted in
-  // ascending channel_id order.
-  repeated Channel channel = 1;
-  // If set, indicates that the list of channels is the final list.  Requesting
-  // more channels can only return more if they are created after this RPC
-  // completes.
-  bool end = 2;
-}
-
-message GetChannelRequest {
-  int64 channel_id = 1;
-}
-
-message GetChannelResponse {
-  Channel channel = 1;
-}
-
-message GetSubchannelRequest {
-  int64 subchannel_id = 1;
-}
-
-message GetSubchannelResponse {
-  Subchannel subchannel = 1;
-}
-
-message GetSocketRequest {
-  int64 socket_id = 1;
-}
-
-message GetSocketResponse {
-  Socket socket = 1;
-}