Remove duplicated copy of networking_private_event_router_factory

chrome/chrome_browser_extensions.gypi

 # Copyright (c) 2013 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': {
     # These variables are shared with the GN build.
     # Name is that these are the extensions files for the extensions target.
     # "chrome_browser_extensions_sources' are the extensions files in the
     # browser target.
@@ skipping 904 matching lines @@
       'browser/extensions/extension_error_ui_android.cc',
       'browser/extensions/extension_error_ui_android.h',
       'browser/extensions/extension_tab_util_android.cc',
     ],
     'chrome_browser_extensions_networking_private_sources': [
       'browser/extensions/api/networking_private/networking_private_api.h',
       'browser/extensions/api/networking_private/networking_private_credentials_getter.h',
       'browser/extensions/api/networking_private/networking_private_credentials_getter_mac.cc',
       'browser/extensions/api/networking_private/networking_private_credentials_getter_win.cc',
       'browser/extensions/api/networking_private/networking_private_event_router.h',
-      'browser/extensions/api/networking_private/networking_private_event_router_factory.cc',
-      'browser/extensions/api/networking_private/networking_private_event_router_factory.h',
       'browser/extensions/api/networking_private/networking_private_event_router_nonchromeos.cc',
       'browser/extensions/api/networking_private/networking_private_service_client.cc',
       'browser/extensions/api/networking_private/networking_private_service_client.h',
       'browser/extensions/api/networking_private/networking_private_service_client_factory.cc',
       'browser/extensions/api/networking_private/networking_private_service_client_factory.h',
     ],
     'chrome_browser_extensions_brlapi_sources': [
       'browser/extensions/api/braille_display_private/braille_controller_brlapi.cc',
       'browser/extensions/api/braille_display_private/brlapi_connection.cc',
       'browser/extensions/api/braille_display_private/brlapi_connection.h',
@@ skipping 275 matching lines @@
       'type': 'static_library',
       'sources': [ 'browser/extensions/api/cast_channel/cast_channel.proto' ],
       'variables': {
           'proto_in_dir': 'browser/extensions/api/cast_channel',
           'proto_out_dir': 'chrome/browser/extensions/api/cast_channel',
       },
       'includes': [ '../build/protoc.gypi' ]
     },
   ],
 }