Remove Skia's forked buildbot code

master/skia_master_scripts/master_revision.py

-# Copyright (c) 2014 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.
-
-
-""" JSON interface which gives the buildbot master's current code revision. """
-
-
-from buildbot.status.web.status_json import JsonResource
-
-import utils
-
-
-class MasterCheckedOutRevisionJsonResource(JsonResource):
-  """Revision of the buildbot code on the build master."""
-  help = ('Revision of the buildbot code on the build master, which may or may '
-          'not be the revision which is actually running, see also '
-          'MasterRunningRevisionJsonResource.')
-  pageTitle = 'Master Revision'
-
-  def asDict(self, request):
-    return {'master_checkedout_revision': utils.get_current_revision()}
-
-
-class MasterRunningRevisionJsonResource(JsonResource):
-  """Revision of the buildbot code which the build master is actually running.
-  """
-  help = ('Revision of the buildbot code which the build master is actually '
-          'running.')
-  pageTitle = 'Master Running Revision'
-
-  def __init__(self, running_revision, **kwargs):
-    JsonResource.__init__(self, **kwargs)
-    self._running_revision = running_revision
-
-  def asDict(self, request):
-    return {'master_running_revision': self._running_revision}