Remove all gyp[i] files in //chrome

chrome/third_party/chromevox/chromevox.gyp

-# Copyright 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.
-
-{
-  'conditions': [
-    ['chromeos==1', {
-      'targets': [
-        {
-          'target_name': 'chromevox_third_party_resources',
-          'type': 'none',
-          'copies': [
-            # TODO(plundblad): Some of these css files are forks of
-            # cs from Chrome's web ui.  Consider consolidating those.
-            {
-              'destination': '<(PRODUCT_DIR)/resources/chromeos/chromevox/chromevox/background',
-              'files': [
-                'chromevox/background/chrome_shared2.css',
-                'chromevox/background/options.css',
-                'chromevox/background/options_widgets.css',
-              ],
-            },
-            {
-              'destination': '<(PRODUCT_DIR)/resources/chromeos/chromevox/chromevox/injected',
-              'files': [
-                'chromevox/injected/mathjax_external_util.js',
-                'chromevox/injected/mathjax.js',
-              ],
-            },
-          ],
-        },
-      ],
-    }],
-  ],
-}