Remove time ticks metrics and MetricServiceClient::OnLogUploadComplete

ios/chrome/browser/metrics/ios_chrome_metrics_service_client.mm

 // 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 "ios/chrome/browser/metrics/ios_chrome_metrics_service_client.h"
 
 #include <stdint.h>
 
 #include <utility>
 #include <vector>
@@ skipping 105 matching lines @@
 
 metrics::SystemProfileProto::Channel
 IOSChromeMetricsServiceClient::GetChannel() {
   return metrics::AsProtobufChannel(::GetChannel());
 }
 
 std::string IOSChromeMetricsServiceClient::GetVersionString() {
   return metrics::GetVersionString();
 }
 
-void IOSChromeMetricsServiceClient::OnLogUploadComplete() {}
-
 void IOSChromeMetricsServiceClient::InitializeSystemProfileMetrics(
     const base::Closure& done_callback) {
   finished_init_task_callback_ = done_callback;
   drive_metrics_provider_->GetDriveMetrics(
       base::Bind(&IOSChromeMetricsServiceClient::OnInitTaskGotDriveMetrics,
                  weak_ptr_factory_.GetWeakPtr()));
 }
 
 void IOSChromeMetricsServiceClient::CollectFinalMetricsForLog(
     const base::Closure& done_callback) {
@@ skipping 179 matching lines @@
 
 void IOSChromeMetricsServiceClient::OnURLOpenedFromOmnibox(OmniboxLog* log) {
   metrics_service_->OnApplicationNotIdle();
 }
 
 metrics::EnableMetricsDefault
 IOSChromeMetricsServiceClient::GetMetricsReportingDefaultState() {
   return metrics::GetMetricsReportingDefaultState(
       GetApplicationContext()->GetLocalState());
 }