Remove a follow-on internal that was added post-internalization, keep the templated QPS worker rather than going back to internal API

include/grpc++/impl/codegen/server_interface.h

@@ -212,7 +212,7 @@ class ServerInterface : public CallHook {
     void* const registered_method_;
     ServerInterface* const server_;
     ServerContext* const context_;
-    internal::ServerAsyncStreamingInterface* const stream_;
+    ServerAsyncStreamingInterface* const stream_;
     CompletionQueue* const call_cq_;
     ServerCompletionQueue* const notification_cq_;
     void* const tag_;

test/cpp/qps/server_sync.cc

@@ -112,8 +112,8 @@ class BenchmarkServiceImpl final : public BenchmarkService::Service {
   }
 
  private:
-  static Status ClientPull(ServerContext* context,
+  template <class R>
-                           ReaderInterface<SimpleRequest>* stream,
+  static Status ClientPull(ServerContext* context, R* stream,
                            SimpleResponse* response) {
     SimpleRequest request;
     while (stream->Read(&request)) {
@@ -126,8 +126,8 @@ class BenchmarkServiceImpl final : public BenchmarkService::Service {
     }
     return Status::OK;
   }
-  static Status ServerPush(ServerContext* context,
+  template <class W>
-                           WriterInterface<SimpleResponse>* stream,
+  static Status ServerPush(ServerContext* context, W* stream,
                            const SimpleResponse& response,
                            std::function<bool()> done) {
     while ((done == nullptr) || !done()) {