Remove OnRecordingDisabled() metrics client interface.

components/metrics/metrics_service.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.
 
 //------------------------------------------------------------------------------
 // Description of the life cycle of a instance of MetricsService.
 //
 //  OVERVIEW
 //
 // A MetricsService instance is typically created at application startup.  It is
@@ skipping 378 matching lines @@
   base::AddActionCallback(action_callback_);
 }
 
 void MetricsService::DisableRecording() {
   DCHECK(IsSingleThreaded());
 
   if (recording_state_ == INACTIVE)
     return;
   recording_state_ = INACTIVE;
 
-  client_->OnRecordingDisabled();
-
   base::RemoveActionCallback(action_callback_);
 
   for (MetricsProvider* provider : metrics_providers_)
     provider->OnRecordingDisabled();
 
   PushPendingLogsToPersistentStorage();
 }
 
 bool MetricsService::recording_active() const {
   DCHECK(IsSingleThreaded());
@@ skipping 796 matching lines @@
                  base::Time::Now().ToTimeT());
 }
 
 void MetricsService::SkipAndDiscardUpload() {
   log_manager_.DiscardStagedLog();
   scheduler_->UploadCancelled();
   log_upload_in_progress_ = false;
 }
 
 }  // namespace metrics