Split qpstest.proto into two parts - one for performance stats and
one for control.
Eliminate the use of our own SimpleRequest and SimpleResponse and
instead share the one from end2end testing
diff --git a/test/cpp/qps/server_async.cc b/test/cpp/qps/server_async.cc
index 98fa9c5..64c260b 100644
--- a/test/cpp/qps/server_async.cc
+++ b/test/cpp/qps/server_async.cc
@@ -49,7 +49,7 @@
 #include <grpc++/security/server_credentials.h>
 #include <gtest/gtest.h>
 
-#include "test/proto/qpstest.grpc.pb.h"
+#include "test/proto/perf_control.grpc.pb.h"
 #include "test/cpp/qps/server.h"
 
 namespace grpc {