Remove experimental sync promo layouts

chrome/chrome_tests.gypi

 # Copyright (c) 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.
 {
   'variables' : {
     'pyautolib_sources': [
       'app/chrome_command_ids.h',
       'app/chrome_dll_resource.h',
       'common/automation_constants.h',
       'common/pref_names.cc',
@@ skipping 2805 matching lines @@
         'browser/ui/webui/options/certificate_manager_browsertest.js',
         'browser/ui/webui/options/content_options_browsertest.js',
         'browser/ui/webui/options/content_settings_exception_area_browsertest.js',
         'browser/ui/webui/options/cookies_view_browsertest.js',
         'browser/ui/webui/options/font_settings_browsertest.js',
         'browser/ui/webui/options/language_options_browsertest.js',
         'browser/ui/webui/options/options_browsertest.js',
         'browser/ui/webui/options/password_manager_browsertest.js',
         'browser/ui/webui/options/personal_options_browsertest.js',
         'browser/ui/webui/options/search_engine_manager_browsertest.js',
-        'browser/ui/webui/sync_promo/sync_promo_dialog_browsertest.cc',
         'browser/ui/webui/sync_setup_browsertest.js',
         'browser/ui/webui/test_html_dialog_ui_delegate.cc',
         'browser/ui/webui/test_html_dialog_ui_delegate.h',
         'browser/ui/webui/web_ui_browsertest.cc',
         'browser/ui/webui/web_ui_browsertest.h',
         'browser/ui/webui/web_ui_test_handler.cc',
         'browser/ui/webui/web_ui_test_handler.h',
         'common/mac/mock_launchd.cc',
         'common/mac/mock_launchd.h',
         'common/time_format_browsertest.cc',
@@ skipping 1751 matching lines @@
               # Use outputs of this action as inputs for the main target build.
               # Seems as a misnomer but makes this happy on Linux (scons).
               'process_outputs_as_sources': 1,
             },
           ],  # 'actions'
         },
       ]
     }],  # 'coverage!=0'
   ],  # 'conditions'
 }