Remove all gyp[i] files in //chrome

chrome/chrome_repack_chrome_300_percent.gypi

-# 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.
-{
-  # GN version: //chrome:repack_chrome_300_percent
-  'action_name': 'repack_chrome_resources_300_percent',
-  'variables': {
-    'pak_inputs': [
-      # Only iOS generates 300 percent pak files so the inputs will need to be
-      # updated if other platforms need 300 percent support.
-      '<(SHARED_INTERMEDIATE_DIR)/components/components_resources_300_percent.pak',
-      '<(SHARED_INTERMEDIATE_DIR)/ui/resources/ui_resources_300_percent.pak',
-      # TODO(ios): Remove the dependency on renderer_resources.
-      '<(grit_out_dir)/renderer_resources_300_percent.pak',
-      '<(grit_out_dir)/theme_resources_300_percent.pak',
-    ],
-    'pak_output': '<(SHARED_INTERMEDIATE_DIR)/repack/chrome_300_percent.pak',
-  },
-  'includes': [ '../build/repack_action.gypi' ],
-}