Closure: remove older, original GYP compilation system

components/chrome_apps/webstore_widget/app/compiled_resources.gyp

-# Copyright 2015 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.
-{
-  'targets': [
-    {
-      'target_name': 'main',
-      'variables': {
-        'depends': [
-          '<@(cws_widget_container)',
-          '../../../../third_party/jstemplate/compiled_resources.gyp:jstemplate',
-          '../../../../ui/webui/resources/js/compiled_resources.gyp:i18n_template_no_process',
-          '../../../../ui/webui/resources/js/load_time_data.js',
-        ],
-        'externs': [
-          '<(EXTERNS_DIR)/chrome_send.js',
-          '<(EXTERNS_DIR)/chrome_extensions.js',
-          '<(EXTERNS_DIR)/file_manager_private.js',
-          '<(EXTERNS_DIR)/metrics_private.js',
-          '../externs/chrome_webstore_widget_private.js',
-          '../externs/webview_tag.js'
-        ]
-      },
-      'includes': [
-        '../../../../third_party/closure_compiler/compile_js.gypi',
-        '../cws_widget/compiled_resources.gypi'
-      ]
-    },
-    {
-      'target_name': 'background',
-      'variables': {
-        'externs': [
-          '<(EXTERNS_DIR)/chrome_extensions.js',
-          '../externs/chrome_webstore_widget_private.js'
-        ]
-      },
-      'includes': [
-        '../../../../third_party/closure_compiler/compile_js.gypi'
-      ]
-    }
-  ]
-}