1 files changed, 0 insertions, 1 deletions
diff --git a/config.m4 b/config.m4
index df06259606..ee2aca4fa5 100644
--- a/config.m4
+++ b/config.m4
@@ -321,7 +321,6 @@ if test "$PHP_GRPC" != "no"; then
     third_party/nanopb/pb_decode.c \
     third_party/nanopb/pb_encode.c \
     src/core/tsi/transport_security.cc \
-    src/core/tsi/transport_security_adapter.cc \
     src/core/ext/transport/chttp2/client/insecure/channel_create.cc \
     src/core/ext/transport/chttp2/client/insecure/channel_create_posix.cc \
     src/core/ext/transport/chttp2/client/authority.cc \