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

Tools/Scripts/webkitpy/tool/steps/checkstyle.py

Index: Tools/Scripts/webkitpy/tool/steps/checkstyle.py
diff --git a/Tools/Scripts/webkitpy/tool/steps/checkstyle.py b/Tools/Scripts/webkitpy/tool/steps/checkstyle.py
deleted file mode 100644
index c699ed542f7312612f52b72008a413d5c5b63f07..0000000000000000000000000000000000000000
--- a/Tools/Scripts/webkitpy/tool/steps/checkstyle.py
+++ /dev/null
@@ -1,67 +0,0 @@
-# Copyright (C) 2010 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.
-
-from webkitpy.common.system.executive import ScriptError
-from webkitpy.tool.steps.abstractstep import AbstractStep
-from webkitpy.tool.steps.options import Options
-
-class CheckStyle(AbstractStep):
-    @classmethod
-    def options(cls):
-        return AbstractStep.options() + [
-            Options.non_interactive,
-            Options.check_style,
-            Options.check_style_filter,
-            Options.git_commit,
-        ]
-
-    def run(self, state):
-        if not self._options.check_style:
-            return
-
-        args = []
-        if self._options.git_commit:
-            args.append("--git-commit")
-            args.append(self._options.git_commit)
-
-        args.append("--diff-files")
-        args.extend(self._changed_files(state))
-
-        if self._options.check_style_filter:
-            args.append("--filter")
-            args.append(self._options.check_style_filter)
-
-        try:
-            self._tool.executive.run_and_throw_if_fail(self._tool.deprecated_port().check_webkit_style_command() + args, cwd=self._tool.scm().checkout_root)
-        except ScriptError, e:
-            if self._options.non_interactive:
-                # We need to re-raise the exception here to have the
-                # style-queue do the right thing.
-                raise e
-            if not self._tool.user.confirm("Are you sure you want to continue?"):
-                self._exit(1)