Remove comment from generated LICENSES.sky file

tools/licenses.py

 #!/usr/bin/env python
 # Copyright (c) 2012 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.
 
 """Utility for checking and processing licensing information in third_party
 directories.
 
 Usage: licenses.py <command>
 
@@ skipping 421 matching lines @@
             continue
         env = {
             'name': metadata['Name'],
             'url': metadata['URL'],
             'license': open(metadata['License File'], 'rb').read(),
         }
         entries.append(EvaluateTemplate(entry_template, env))
 
     file_template = open(os.path.join(templates_dir,
                                       'about_credits.tmpl'), 'rb').read()
-    template_contents = "<!-- Generated by licenses.py; do not edit. -->"
     template_contents += EvaluateTemplate(file_template,
                                           {'entries': '\n'.join(entries)},
                                           escape=False)
 
     if len(sys.argv) == 3:
       with open(sys.argv[2], 'w') as output_file:
         output_file.write(template_contents)
     elif len(sys.argv) == 2:
       print template_contents
 
@@ skipping 11 matching lines @@
     elif command == 'credits':
         if not GenerateCredits():
             return 1
     else:
         print __doc__
         return 1
 
 
 if __name__ == '__main__':
   sys.exit(main())