Removed unused sync_[no]_cxx11 files

BUILD

@@ -200,8 +200,6 @@ GRPCXX_PUBLIC_HDRS = [
     "include/grpc++/impl/server_builder_plugin.h",
     "include/grpc++/impl/server_initializer.h",
     "include/grpc++/impl/service_type.h",
-    "include/grpc++/impl/sync_cxx11.h",
-    "include/grpc++/impl/sync_no_cxx11.h",
     "include/grpc++/security/auth_context.h",
     "include/grpc++/resource_quota.h",
     "include/grpc++/security/auth_metadata_processor.h",
@@ -256,8 +254,6 @@ GRPCXX_PUBLIC_HDRS = [
     "include/grpcpp/impl/server_initializer.h",
     "include/grpcpp/impl/server_initializer_impl.h",
     "include/grpcpp/impl/service_type.h",
-    "include/grpcpp/impl/sync_cxx11.h",
-    "include/grpcpp/impl/sync_no_cxx11.h",
     "include/grpcpp/resource_quota.h",
     "include/grpcpp/resource_quota_impl.h",
     "include/grpcpp/security/auth_context.h",

include/grpc++/impl/sync_cxx11.h

@@ -1,28 +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.
- *
- */
-
-// DEPRECATED: The headers in include/grpc++ are deprecated. Please include the
-// headers in include/grpcpp instead. This header exists only for backwards
-// compatibility.
-
-#ifndef GRPCXX_IMPL_SYNC_CXX11_H
-#define GRPCXX_IMPL_SYNC_CXX11_H
-
-#include <grpcpp/impl/sync_cxx11.h>
-
-#endif  // GRPCXX_IMPL_SYNC_CXX11_H

include/grpc++/impl/sync_no_cxx11.h

@@ -1,28 +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.
- *
- */
-
-// DEPRECATED: The headers in include/grpc++ are deprecated. Please include the
-// headers in include/grpcpp instead. This header exists only for backwards
-// compatibility.
-
-#ifndef GRPCXX_IMPL_SYNC_NO_CXX11_H
-#define GRPCXX_IMPL_SYNC_NO_CXX11_H
-
-#include <grpcpp/impl/sync_no_cxx11.h>
-
-#endif  // GRPCXX_IMPL_SYNC_NO_CXX11_H

include/grpcpp/impl/sync_cxx11.h

@@ -1,24 +0,0 @@
-/*
- *
- * Copyright 2015 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.
- *
- */
-
-#ifndef GRPCPP_IMPL_SYNC_CXX11_H
-#define GRPCPP_IMPL_SYNC_CXX11_H
-
-#include <grpcpp/impl/codegen/sync_cxx11.h>
-
-#endif  // GRPCPP_IMPL_SYNC_CXX11_H

include/grpcpp/impl/sync_no_cxx11.h

@@ -1,24 +0,0 @@
-/*
- *
- * Copyright 2015 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.
- *
- */
-
-#ifndef GRPCPP_IMPL_SYNC_NO_CXX11_H
-#define GRPCPP_IMPL_SYNC_NO_CXX11_H
-
-#include <grpcpp/impl/codegen/sync_no_cxx11.h>
-
-#endif  // GRPCPP_IMPL_SYNC_NO_CXX11_H

tools/run_tests/sanity/check_deprecated_grpc++.py

@@ -51,10 +51,8 @@ expected_files = [
     "include/grpc++/impl/rpc_service_method.h",
     "include/grpc++/impl/method_handler_impl.h",
     "include/grpc++/impl/server_builder_plugin.h",
-    "include/grpc++/impl/sync_cxx11.h",
     "include/grpc++/impl/server_initializer.h",
     "include/grpc++/impl/serialization_traits.h",
-    "include/grpc++/impl/sync_no_cxx11.h",
     "include/grpc++/impl/codegen/sync_stream.h",
     "include/grpc++/impl/codegen/channel_interface.h",
     "include/grpc++/impl/codegen/config_protobuf.h",