Get rid of transitionary patch_root cleanup hacks.

scripts/slave/recipes/run_presubmit.py

 # Copyright (c) 2013 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.
 
 DEPS = [
   'depot_tools/bot_update',
   'depot_tools/gclient',
   'depot_tools/git',
   'depot_tools/presubmit',
   'recipe_engine/json',
   'recipe_engine/path',
   'recipe_engine/properties',
   'recipe_engine/python',
   'depot_tools/tryserver',
   'depot_tools/rietveld',
   'v8',
   'webrtc',
 ]
 
 
 def _RunStepsInternal(api):
   repo_name = api.properties['repo_name']
   codereview_auth = api.properties.get('codereview_auth', False)
   force_checkout = api.properties.get('force_checkout', False)
 
   api.gclient.set_config(repo_name)
 
   bot_update_step = api.bot_update.ensure_checkout(
       force=force_checkout,
-      patch_oauth2=codereview_auth,
-      # TODO(tandrii): remove this to fix http://crbug.com/605541.
-      patch_root='TODO(TANDRII): REMOVE THIS TRANSITION TO patch_projects')
+      patch_oauth2=codereview_auth)
   relative_root = api.gclient.calculate_patch_root(
       api.properties['patch_project']).rstrip('/')
   got_revision_property = api.gclient.c.got_revision_mapping[relative_root]
   upstream = bot_update_step.json.output['properties'].get(
       got_revision_property)
   if (not upstream or
       isinstance(upstream, int) or
       (upstream.isdigit() and len(upstream) < 40)):
     # If got_revision is an svn revision, then use got_revision_git.
     upstream = bot_update_step.json.output['properties'].get(
@@ skipping 105 matching lines @@
     api.test('recipes-py') +
     api.properties.tryserver(
         mastername='tryserver.infra',
         buildername='infra_presubmit',
         repo_name='recipes_py',
         patch_project='recipes-py',
         runhooks=True) +
     api.step_data('presubmit', api.json.output([['infra_presubmit',
                                                  ['compile']]]))
   )