Remove a bunch of unused webkitpy code from tool/, common/checkout/ and common/config/

Tools/Scripts/webkitpy/tool/commands/download_unittest.py

-# Copyright (C) 2009, 2011 Google Inc. All rights reserved.
-#
-# Redistribution and use in source and binary forms, with or without
-# modification, are permitted provided that the following conditions are
-# met:
-#
-#    * Redistributions of source code must retain the above copyright
-# notice, this list of conditions and the following disclaimer.
-#    * Redistributions in binary form must reproduce the above
-# copyright notice, this list of conditions and the following disclaimer
-# in the documentation and/or other materials provided with the
-# distribution.
-#    * Neither the name of Google Inc. nor the names of its
-# contributors may be used to endorse or promote products derived from
-# this software without specific prior written permission.
-#
-# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-import webkitpy.thirdparty.unittest2 as unittest
-
-from webkitpy.common.system.outputcapture import OutputCapture
-from webkitpy.thirdparty.mock import Mock
-from webkitpy.tool.commands.commandtest import CommandsTest
-from webkitpy.tool.commands.download import *
-from webkitpy.tool.mocktool import MockOptions, MockTool
-from webkitpy.common.checkout.checkout_mock import MockCheckout
-
-
-class DownloadCommandsTest(CommandsTest):
-    maxDiff = None
-
-    def _default_options(self):
-        options = MockOptions()
-        options.build = True
-        options.build_style = True
-        options.check_style = True
-        options.check_style_filter = None
-        options.clean = True
-        options.close_bug = True
-        options.force_clean = False
-        options.non_interactive = False
-        options.parent_command = 'MOCK parent command'
-        options.quiet = False
-        options.test = True
-        options.update = True
-        return options