Clean up some GN/hermetic build changes.

build/config/mac/compile_xib.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 argparse
 import logging
 import os
 import re
 import subprocess
 import sys
 
 
 def main():
   parser = argparse.ArgumentParser(
       description='A script to compile xib and storyboard.',
       fromfile_prefix_chars='@')
   parser.add_argument('-o', '--output', required=True,
                       help='Path to output bundle.')
   parser.add_argument('-i', '--input', required=True,
                       help='Path to input xib or storyboard.')
   parser.add_argument('--developer_dir', required=False,
                       help='Path to Xcode.')
   args, unknown_args = parser.parse_known_args()
 
-  if (args.developer_dir):
+  if args.developer_dir:
     os.environ['DEVELOPER_DIR'] = args.developer_dir
 
   ibtool_args = [
       'xcrun', 'ibtool',
       '--errors', '--warnings', '--notices',
       '--output-format', 'human-readable-text'
   ]
   ibtool_args += unknown_args
   ibtool_args += [
       '--compile',
@@ skipping 11 matching lines @@
     elif not ibtool_re.match(line):
       if current_section_header:
         sys.stdout.write(current_section_header)
         current_section_header = None
       sys.stdout.write(line)
   return ibtoolout.returncode
 
 
 if __name__ == '__main__':
   sys.exit(main())