Remove all gyp[i] files in //chrome

chrome/browser/resources/chromeos/chromevox/common.gypi

-# 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.
-# Common variables shared amongst all ChromeVox targets.
-
-{
-  'variables': {
-    'chromevox_dir': '.',
-    'chromevox_third_party_dir': '<(DEPTH)/chrome/third_party/chromevox',
-    'closure_goog_dir': '<(chromevox_third_party_dir)/third_party/closure-library/closure/goog',
-    'chromevox_dest_dir': '<(PRODUCT_DIR)/resources/chromeos/chromevox',
-    'js_root_flags': [
-      '-r', '.',
-      '-r', '<(chromevox_dir)',
-      '-r', '<(closure_goog_dir)',
-      '-x', 'testing',
-      '-x', '_test.js',
-    ],
-    'path_rewrite_flags': [
-      '-w', '<(closure_goog_dir):closure',
-    ],
-    'template_manifest_path': 'manifest.json.jinja2',
-  },
-}