Revert of [Mac/GN] Fix rebuilds when changing framework_version of a mac_framework_bundle.

build/config/mac/prepare_framework_version.py

-# Copyright 2016 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.
-
-import os.path
-import shutil
-import sys
-
-# Ensures that the current version matches the last-produced version, which is
-# stored in the version_file. If it does not, then the framework_root_dir is
-# obliterated.
-# Usage: python prepare_framework_version.py out/obj/version_file \
-#                                            out/Framework.framework \
-#                                            'A'
-
-def PrepareFrameworkVersion(version_file, framework_root_dir, version):
-  try:
-    with open(version_file, 'r') as f:
-      current_version = f.read()
-      if current_version == version:
-        return
-  except IOError:
-    pass
-
-  if os.path.exists(framework_root_dir):
-    shutil.rmtree(framework_root_dir)
-
-  f = open(version_file, 'w+')
-  f.write(version)
-  f.close()
-
-
-if __name__ == '__main__':
-  PrepareFrameworkVersion(sys.argv[1], sys.argv[2], sys.argv[3])