Eliminate ui/ios

ui/ios/ui_ios.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': [
-    {
-      'target_name': 'ui_ios',
-      'type': 'static_library',
-      # Linkable dependents need to set the linker flag '-ObjC' in order to use
-      # the categories in this target (e.g. NSString+CrStringDrawing.h).
-      'link_settings': {
-        'xcode_settings': {'OTHER_LDFLAGS': ['-ObjC']},
-      },
-      'include_dirs': [
-        '../..',
-      ],
-      'sources': [
-        'NSString+CrStringDrawing.h',
-        'NSString+CrStringDrawing.mm',
-        'uikit_util.h',
-        'uikit_util.mm',
-      ],
-    },
-  ],
-}