Remove SVN support from checkout.py

apply_issue.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.
 
 """Applies an issue from Rietveld.
 """
 import getpass
 import json
 import logging
@@ skipping 247 matching lines @@
       patchset.patches = [patch for patch in patchset.patches
                           if patch.filename not in options.blacklist]
     for patch in patchset.patches:
       print(patch)
       if options.extra_patchlevel:
         patch.patchlevel += options.extra_patchlevel
     full_dir = os.path.abspath(options.root_dir)
     scm_type = scm.determine_scm(full_dir)
     if scm_type == 'git':
       scm_obj = checkout.GitCheckout(full_dir, None, None, None, None)
-    elif scm_type == None:
-      scm_obj = checkout.RawCheckout(full_dir, None, None)
     else:
       parser.error('Couldn\'t determine the scm')
 
     # TODO(maruel): HACK, remove me.
     # When run a build slave, make sure buildbot knows that the checkout was
     # modified.
     if options.root_dir == 'src' and getpass.getuser() == 'chrome-bot':
       # See sourcedirIsPatched() in:
       # http://src.chromium.org/viewvc/chrome/trunk/tools/build/scripts/slave/
       #    chromium_commands.py?view=markup
@@ skipping 38 matching lines @@
   return RETURN_CODE_OK
 
 
 if __name__ == "__main__":
   fix_encoding.fix_encoding()
   try:
     sys.exit(main())
   except KeyboardInterrupt:
     sys.stderr.write('interrupted\n')
     sys.exit(RETURN_CODE_OTHER_FAILURE)