[Sync] Removing duplicated includes between cc and h files.

components/sync/syncable/syncable_write_transaction.cc

 // Copyright 2012 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 "components/sync/syncable/syncable_write_transaction.h"
 
-#include <stdint.h>
-
 #include <string>
 
 #include "components/sync/syncable/directory.h"
 #include "components/sync/syncable/directory_change_delegate.h"
 #include "components/sync/syncable/mutable_entry.h"
 #include "components/sync/syncable/transaction_observer.h"
 #include "components/sync/syncable/write_transaction_info.h"
 
 namespace syncer {
 namespace syncable {
@@ skipping 168 matching lines @@
     ENUM_CASE(SYNCAPI);
   }
   NOTREACHED();
   return std::string();
 }
 
 #undef ENUM_CASE
 
 }  // namespace syncable
 }  // namespace syncer