Remove more feature in product mode

runtime/vm/service_isolate.cc

 // Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 #include "vm/service_isolate.h"
 
 #include "vm/compiler.h"
 #include "vm/dart_api_impl.h"
 #include "vm/dart_entry.h"
 #include "vm/isolate.h"
@@ skipping 284 matching lines @@
   MonitorLocker ml(monitor_);
   initializing_ = false;
   ml.NotifyAll();
 }
 
 
 class RunServiceTask : public ThreadPool::Task {
  public:
   virtual void Run() {
     ASSERT(Isolate::Current() == NULL);
+#ifndef PRODUCT
     TimelineDurationScope tds(Timeline::GetVMStream(),
                               "ServiceIsolateStartup");
+#endif  // !PRODUCT
     char* error = NULL;
     Isolate* isolate = NULL;
 
     Dart_IsolateCreateCallback create_callback =
         ServiceIsolate::create_callback();
     // TODO(johnmccutchan): Support starting up service isolate without embedder
     // provided isolate creation callback.
     if (create_callback == NULL) {
       ServiceIsolate::FinishedInitializing();
       return;
@@ skipping 184 matching lines @@
   ASSERT(!result.IsNull());
   Dart_Port port = ILLEGAL_PORT;
   if (result.IsReceivePort()) {
     port = ReceivePort::Cast(result).Id();
   }
   ASSERT(port != ILLEGAL_PORT);
   ServiceIsolate::SetServicePort(port);
 }
 
 }  // namespace dart