Remove old template html boilerplate

chrome/browser/supervised_user/supervised_user_interstitial.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 "chrome/browser/supervised_user/supervised_user_interstitial.h"
 
 #include "base/memory/weak_ptr.h"
 #include "base/metrics/histogram.h"
 #include "base/prefs/pref_service.h"
 #include "base/strings/string_number_conversions.h"
@@ skipping 212 matching lines @@
   strings.SetString(
       "requestSentMessage",
       l10n_util::GetStringFUTF16(IDS_BLOCK_INTERSTITIAL_REQUEST_SENT_MESSAGE,
                                  custodian));
 
   webui::SetFontAndTextDirection(&strings);
 
   base::StringPiece html(ResourceBundle::GetSharedInstance().GetRawDataResource(
       IDR_SUPERVISED_USER_BLOCK_INTERSTITIAL_HTML));
 
-  webui::UseVersion2 version;
   return webui::GetI18nTemplateHtml(html, &strings);
 }
 
 void SupervisedUserInterstitial::CommandReceived(const std::string& command) {
   // For use in histograms.
   enum Commands {
     PREVIEW,
     BACK,
     NTP,
     ACCESS_REQUEST,
@@ skipping 57 matching lines @@
 void SupervisedUserInterstitial::OnFilteringPrefsChanged() {
   if (ShouldProceed())
     interstitial_page_->Proceed();
 }
 
 void SupervisedUserInterstitial::DispatchContinueRequest(
     bool continue_request) {
   BrowserThread::PostTask(
       BrowserThread::IO, FROM_HERE, base::Bind(callback_, continue_request));
 }