Make this file compile

test/cpp/end2end/sync_client_async_server_test.cc

@@ -49,7 +49,7 @@
 #include <grpc++/status.h>
 #include <grpc++/stream.h>
 #include "test/cpp/end2end/async_test_server.h"
-#include "net/util/netutil.h"
+#include "test/core/util/port.h"
 #include <gtest/gtest.h>
 
 using grpc::cpp::test::util::EchoRequest;
@@ -73,7 +73,7 @@ void ServerLoop(void* s) {
 class End2endTest : public ::testing::Test {
  protected:
   void SetUp() override {
-    int port = PickUnusedPortOrDie();
+    int port = grpc_pick_unused_port_or_die();
     // TODO(yangg) protobuf has a StringPrintf, maybe use that
     std::ostringstream oss;
     oss << "[::]:" << port;