grpc-native: move api tests verbatim to grpc-native-core

test/api/echo_service.proto

@@ -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.
-
-syntax = "proto3";
-
-message EchoMessage {
-  string value = 1;
-  int32 value2 = 2;
-}
-
-service EchoService {
-  rpc Echo (EchoMessage) returns (EchoMessage);
-}

test/api/test_messages.proto

@@ -1,45 +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.
-
-syntax = "proto3";
-
-message LongValues {
-  int64 int_64 = 1;
-  uint64 uint_64 = 2;
-  sint64 sint_64 = 3;
-  fixed64 fixed_64 = 4;
-  sfixed64 sfixed_64 = 5;
-}
-
-message SequenceValues {
-  bytes bytes_field = 1;
-  repeated int32 repeated_field = 2;
-}
-
-message OneOfValues {
-  oneof oneof_choice {
-    int32 int_choice = 1;
-    string string_choice = 2;
-  }
-}
-
-enum TestEnum {
-  ZERO = 0;
-  ONE = 1;
-  TWO = 2;
-}
-
-message EnumValues {
-  TestEnum enum_value = 1;
-}