Remove Skia's forked buildbot code

slave/skia_slave_scripts/install.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.
-
-""" Install all executables, and any runtime resources that are needed by
-    *both* Test and Bench builders. """
-
-from build_step import BuildStep
-from utils import old_gs_utils as gs_utils
-import os
-import sys
-
-
-class Install(BuildStep):
-  def _Run(self):
-    # Push the SKPs to the device.
-    skps_need_updating = True
-    try:
-      # Only push if the existing set is out of date.
-      host_timestamp = open(os.path.join(self.skp_dir,
-          gs_utils.TIMESTAMP_COMPLETED_FILENAME)).read()
-      device_timestamp = self._flavor_utils.ReadFileOnDevice(
-          os.path.join(self._device_dirs.SKPDir(),
-                       gs_utils.TIMESTAMP_COMPLETED_FILENAME))
-      if host_timestamp == device_timestamp:
-        print 'SKPs are up to date. Skipping.'
-        skps_need_updating = False
-      else:
-        print 'SKP timestamp does not match:\n%s\n%s\nPushing SKPs...' % (
-            device_timestamp, host_timestamp)
-    except Exception as e:
-      print 'Could not get timestamps: %s' % e
-    if skps_need_updating:
-      self._flavor_utils.CopyDirectoryContentsToDevice(
-          self.skp_dir, self._device_dirs.SKPDir())
-
-    # Push resources to the device.
-    self._flavor_utils.CopyDirectoryContentsToDevice(
-        self._resource_dir, self._device_dirs.ResourceDir())
-
-    # Initialize a clean scratch directory.
-    self._flavor_utils.CreateCleanDeviceDirectory(self._device_dirs.TmpDir())
-
-    # Install the Skia executables.
-    self._flavor_utils.Install()
-
-if '__main__' == __name__:
-  sys.exit(BuildStep.RunBuildStep(Install))