Remove GarbageCollected support from the bindings

sky/engine/bindings/scripts/compute_interfaces_info_overall.py

 #!/usr/bin/python
 #
 # Copyright (C) 2013 Google Inc. All rights reserved.
 #
 # Redistribution and use in source and binary forms, with or without
 # modification, are permitted provided that the following conditions are
 # met:
 #
 #     * Redistributions of source code must retain the above copyright
 # notice, this list of conditions and the following disclaimer.
@@ skipping 68 matching lines @@
 from collections import defaultdict
 import cPickle as pickle
 import optparse
 import sys
 
 from utilities import read_pickle_files, write_pickle_file
 
 INHERITED_EXTENDED_ATTRIBUTES = set([
     'ActiveDOMObject',
     'DependentLifetime',
-    'GarbageCollected',
     'NotScriptWrappable',
-    'WillBeGarbageCollected',
 ])
 
 # Main variable (filled in and exported)
 interfaces_info = {}
 
 # Auxiliary variables (not visible to future build steps)
 partial_interface_files = defaultdict(lambda: {
     'full_paths': [],
     'include_paths': [],
 })
@@ skipping 155 matching lines @@
     info_individuals = read_pickle_files(args)
 
     compute_interfaces_info_overall(info_individuals)
     write_pickle_file(interfaces_info_filename,
                       interfaces_info,
                       options.write_file_only_if_changed)
 
 
 if __name__ == '__main__':
     sys.exit(main())