Remove Skia's forked buildbot code

slave/skia_slave_scripts/flavor_utils/chromeos_build_step_utils.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.
-
-""" Utilities for ChromeOS build steps. """
-
-from flavor_utils.ssh_build_step_utils import SshBuildStepUtils
-from slave import slave_utils
-from py.utils import shell_utils
-import os
-
-
-class ChromeosBuildStepUtils(SshBuildStepUtils):
-  def __init__(self, build_step_instance):
-    SshBuildStepUtils.__init__(self, build_step_instance)
-    self._remote_dir = '/usr/local/skiabot'
-    systemtype = 'chromeos-' + self._step.args['board']
-    self._build_dir = os.path.join('out', 'config', systemtype)
-
-  def Compile(self, target):
-    """ Compile the Skia executables. """
-    # Add gsutil to PATH
-    gsutil = slave_utils.GSUtilSetup()
-    os.environ['PATH'] += os.pathsep + os.path.dirname(gsutil)
-
-    # Run the chromeos_make script.
-    make_cmd = os.path.join('platform_tools', 'chromeos', 'bin',
-                            'chromeos_make')
-    cmd = [make_cmd,
-           '-d', self._step.args['board'],
-           target,
-           'BUILDTYPE=%s' % self._step.configuration,
-           ]
-
-    cmd.extend(self._step.default_make_flags)
-    cmd.extend(self._step.make_flags)
-    shell_utils.run(cmd)