Add logging for profiler_server destruction

PiperOrigin-RevId: 339909494
Change-Id: I1a9352342e9b79b55b5ba1f324fecf16a34b7647

tensorflow/core/profiler/rpc/profiler_server.cc

@@ -52,6 +52,7 @@ ProfilerServer::~ProfilerServer() {
   if (server_) {
     server_->Shutdown();
     server_->Wait();
+    LOG(INFO) << "Profiler server was shut down";
   }
 }