views: Remove an unnecessary gyp rule.

ui/views/views.gyp

 # 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': {
     'chromium_code': 1,
   },
-  'target_defaults': {
-    'conditions': [
-      ['OS!="linux" or chromeos==1', {
-        'sources/': [ ['exclude', '_linux\\.(h|cc)$'] ],
-      }],
-    ],
-  },
   'targets': [
     {
       'target_name': 'views',
       'type': '<(component)',
       'dependencies': [
         '../../base/base.gyp:base',
         '../../base/base.gyp:base_i18n',
         '../../base/third_party/dynamic_annotations/dynamic_annotations.gyp:dynamic_annotations',
         '../../skia/skia.gyp:skia',
         '../../third_party/icu/icu.gyp:icui18n',
@@ skipping 666 matching lines @@
         }],
         ['use_ozone==1', {
           'sources!': [
             'corewm/capture_controller_unittest.cc',
           ],
         }],
       ],
     },  # target_name: views_unittests
   ],
 }