Remove GYP files.

android_webview/apk/system_webview_glue_common.gypi

-# 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.
-#
-# This is shared between system_webview_glue_java and system_webview_glue_next_java
-{
-  'type': 'none',
-  'dependencies': [
-    '<(DEPTH)/android_webview/android_webview.gyp:android_webview_java',
-    '<(DEPTH)/android_webview/android_webview.gyp:android_webview_pak',
-  ],
-  'variables': {
-    'resource_rewriter_package': 'com.android.webview.chromium',
-    'resource_rewriter_dir': '<(intermediate_dir)/resource_rewriter',
-    'resource_rewriter_path': '<(resource_rewriter_dir)/com/android/webview/chromium/ResourceRewriter.java',
-    'additional_input_paths': ['<(resource_rewriter_path)'],
-    'generated_src_dirs': ['<(resource_rewriter_dir)'],
-  },
-  'actions': [
-    # Generate ResourceRewriter.java
-    {
-      'action_name': 'generate_resource_rewriter',
-      'message': 'generate ResourceRewriter for <(_target_name)',
-      'inputs':[
-        '<(DEPTH)/build/android/gyp/util/build_utils.py',
-        '<(DEPTH)/build/android/gyp/generate_resource_rewriter.py',
-        '>@(dependencies_res_zip_paths)',
-      ],
-      'outputs': [
-        '<(resource_rewriter_path)',
-      ],
-      'action': [
-        'python', '<(DEPTH)/build/android/gyp/generate_resource_rewriter.py',
-        '--package-name', '<(resource_rewriter_package)',
-        '--dep-packages', '>(additional_res_packages)',
-        '--output-dir', '<(resource_rewriter_dir)',
-      ],
-    },
-  ],
-  'includes': [ '../../build/java.gypi' ],
-}