Remove search::IsQueryExtractionEnabled

ios/chrome/ios_chrome.gyp

 # 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.
 
 {
   'variables': {
     'chromium_code': 1,
   },
   'targets': [
     {
@@ skipping 462 matching lines @@
         'browser/reading_list/reading_list_model_factory.h',
         'browser/reading_list/reading_list_model_impl.cc',
         'browser/reading_list/reading_list_model_impl.h',
         'browser/reading_list/reading_list_model_observer.h',
         'browser/reading_list/reading_list_model_observer.h',
         'browser/reading_list/reading_list_model_storage.h',
         'browser/reading_list/reading_list_model_storage_defaults.h',
         'browser/reading_list/reading_list_model_storage_defaults.mm',
         'browser/root_coordinator.h',
         'browser/root_coordinator.mm',
-        'browser/search/search_util.h',
-        'browser/search/search_util.mm',
         'browser/search_engines/search_engines_util.cc',
         'browser/search_engines/search_engines_util.h',
         'browser/search_engines/template_url_service_client_impl.cc',
         'browser/search_engines/template_url_service_client_impl.h',
         'browser/search_engines/template_url_service_factory.cc',
         'browser/search_engines/template_url_service_factory.h',
         'browser/search_engines/ui_thread_search_terms_data.cc',
         'browser/search_engines/ui_thread_search_terms_data.h',
         'browser/services/gcm/ios_chrome_gcm_profile_service_factory.cc',
         'browser/services/gcm/ios_chrome_gcm_profile_service_factory.h',
@@ skipping 401 matching lines @@
             '../../components/components.gyp:omnibox_browser',
             '../../components/components.gyp:rlz',
             '../../components/components.gyp:search_engines',
             '../../rlz/rlz.gyp:rlz_lib',
           ],
         },
       ],
     }],
   ],
 }