Remove support for jarjar-ing layout.xml files.

android_webview/build/jarjar_resources.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.
-#
-# This file is meant to be included into a target to provide a rule
-# to run the equivalent of jarjar on Java resources (layout.xml files).
-#
-# To use this, create a gyp target with the following form:
-# {
-#   'target_name': 'my-package_java',
-#   'type': 'none',
-#   'variables': {
-#     'java_in_dir': 'path/to/package/root',
-#   },
-#   'includes': ['path/to/this/gypi/file'],
-# }
-#
-# Required variables:
-#  res_dir - The top-level resources folder.
-#  rules_file - Path to the file containing jar-jar rules.
-
-{
-  'variables': {
-    'intermediate_dir': '<(SHARED_INTERMEDIATE_DIR)/<(_target_name)',
-    'jarjar_stamp': '<(intermediate_dir)/jarjar_resources.stamp',
-    'resource_input_paths': ['<!@(find <(res_dir) -type f | sort)'],
-  },
-  'actions': [{
-      'action_name': 'jarjar resources',
-      'message': 'Copying and jar-jaring resources for <(_target_name)',
-      'variables': {
-        'out_dir': '<(intermediate_dir)/jarjar_res',
-      },
-      'inputs': [
-        '<(DEPTH)/build/android/gyp/util/build_utils.py',
-        '<(DEPTH)/build/android/gyp/jarjar_resources.py',
-        '>@(resource_input_paths)',
-      ],
-      'outputs': [
-          '<(jarjar_stamp)',
-      ],
-      'action': [
-        'python', '../build/android/gyp/jarjar_resources.py',
-        '--input-dir', '<(res_dir)',
-        '--output-dir', '<(out_dir)',
-        '--rules-path', '<(rules_file)',
-        '--stamp', '<(jarjar_stamp)',
-      ]
-  }],
-}