Really remove config.h

sky/engine/tonic/dart_persistent_value.cc

 // Copyright 2015 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#include "sky/engine/config.h"
 #include "sky/engine/tonic/dart_persistent_value.h"
 
 #include "sky/engine/tonic/dart_isolate_scope.h"
 #include "sky/engine/tonic/dart_state.h"
 
 namespace blink {
 
 DartPersistentValue::DartPersistentValue() : value_(nullptr) {
 }
 
@@ skipping 24 matching lines @@
 }
 
 Dart_Handle DartPersistentValue::Release() {
   if (!value_)
     return nullptr;
   Dart_Handle local = Dart_HandleFromPersistent(value_);
   Clear();
   return local;
 }
 }