Rollback of commit 822c37816ac669e51bec3853b41849a19ec5e230.

--
PiperOrigin-RevId: 148844518
MOS_MIGRATED_REVID=148844518

1 files changed, 0 insertions, 21 deletions

diff --git a/src/main/java/com/google/devtools/build/lib/query2/engine/ThreadSafeOutputFormatterCallback.java b/src/main/java/com/google/devtools/build/lib/query2/engine/ThreadSafeOutputFormatterCallback.java
deleted file mode 100644
index bc3eb59f84..0000000000
--- a/src/main/java/com/google/devtools/build/lib/query2/engine/ThreadSafeOutputFormatterCallback.java
+++ /dev/null
@@ -1,21 +0,0 @@
-// Copyright 2017 The Bazel Authors. All rights reserved.
-//
-// 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.
-package com.google.devtools.build.lib.query2.engine;
-
-import com.google.devtools.build.lib.concurrent.ThreadSafety.ThreadSafe;
-
-/** A marker parent class for a {@link ThreadSafe} {@link OutputFormatterCallback}. */
-@ThreadSafe
-public abstract class ThreadSafeOutputFormatterCallback<T> extends OutputFormatterCallback<T> {
-}
\ No newline at end of file