Remove Skia's forked buildbot code

slave/skia_slave_scripts/compare_gms.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.
-
-""" Compare the generated GM images to the baselines """
-
-# System-level imports
-import os
-import sys
-
-from build_step import BuildStep, BuildStepWarning
-from py.utils import misc
-import run_gm
-import skia_vars
-
-LIVE_REBASELINE_SERVER_BASEURL = (
-    'http://skia-tree-status.appspot.com/redirect/rebaseline-server/'
-    'static/view.html#/view.html')
-
-
-class CompareGMs(BuildStep):
-  def _Run(self):
-    json_summary_path = misc.GetAbsPath(os.path.join(
-        self._gm_actual_dir, run_gm.JSON_SUMMARY_FILENAME))
-
-    # Temporary list of builders who are allowed to fail this step without the
-    # bot turning red.
-    may_fail_with_warning = []
-    # This import must happen after BuildStep.__init__ because it requires that
-    # CWD is in PYTHONPATH, and BuildStep.__init__ may change the CWD.
-    from gm import display_json_results
-    success = display_json_results.Display(json_summary_path)
-    print ('%s<a href="%s?resultsToLoad=/results/failures&builder=%s">'
-           'link</a>' % (
-               skia_vars.GetGlobalVariable('latest_gm_failures_preamble'),
-               LIVE_REBASELINE_SERVER_BASEURL, self._builder_name))
-    if not success:
-      if self._builder_name in may_fail_with_warning:
-        raise BuildStepWarning('Expectations mismatch in %s!' %
-                               json_summary_path)
-      else:
-        raise Exception('Expectations mismatch in %s!' % json_summary_path)
-
-
-if '__main__' == __name__:
-  sys.exit(BuildStep.RunBuildStep(CompareGMs))