Delete some msvs_cygwin_shell:0

build/grit_action.gypi

 # Copyright (c) 2011 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 an action to invoke grit in a
 # consistent manner. To use this the following variables need to be
 # defined:
 #   grit_grd_file: string: grd file path
 #   grit_out_dir: string: the output directory path
 
@@ skipping 18 matching lines @@
     '<!@pymod_do_main(grit_info <@(grit_defines) <@(grit_additional_defines) '
         '--outputs \'<(grit_out_dir)\' '
         '<(grit_grd_file) -f "<(grit_resource_ids)")',
   ],
   'action': ['<@(grit_cmd)',
              '-i', '<(grit_grd_file)', 'build',
              '-f', '<(grit_resource_ids)',
              '-o', '<(grit_out_dir)',
              '<@(grit_defines)',
              '<@(grit_additional_defines)' ],
-  'msvs_cygwin_shell': 0,
   'message': 'Generating resources from <(grit_grd_file)',
 }