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

components/sync/test/trackable_mock_invalidation.cc

 // Copyright 2014 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/test/trackable_mock_invalidation.h"
 
-#include <stdint.h>
-
 #include "components/sync/test/mock_invalidation_tracker.h"
 
 namespace syncer {
 
 TrackableMockInvalidation::TrackableMockInvalidation(
     bool is_unknown_version,
     int64_t version,
     const std::string& payload,
     MockInvalidationTracker* tracker,
     int tracking_id)
@@ skipping 13 matching lines @@
   if (tracker_) {
     tracker_->Drop(tracking_id_);
   }
 }
 
 int TrackableMockInvalidation::GetTrackingId() {
   return tracking_id_;
 }
 
 }  // namespace syncer