Remove Skia's forked buildbot code

slave/skia_slave_scripts/run_buildbot_self_tests.py

Index: slave/skia_slave_scripts/run_buildbot_self_tests.py
diff --git a/slave/skia_slave_scripts/run_buildbot_self_tests.py b/slave/skia_slave_scripts/run_buildbot_self_tests.py
deleted file mode 100755
index 7a237196f091d70904232e0573463726c84ec3a3..0000000000000000000000000000000000000000
--- a/slave/skia_slave_scripts/run_buildbot_self_tests.py
+++ /dev/null
@@ -1,22 +0,0 @@
-#!/usr/bin/env python
-# 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.
-
-"""Run self-tests within buildbot code. """
-
-import sys
-
-from build_step import BuildStep
-from py.utils import misc
-from py.utils import shell_utils
-
-
-class BuildbotSelfTests(BuildStep):
-  def _Run(self):
-    with misc.ChDir(misc.BUILDBOT_PATH):
-      shell_utils.run(['python', 'run_unittests'])
-
-
-if '__main__' == __name__:
-  sys.exit(BuildStep.RunBuildStep(BuildbotSelfTests))