Cleanup: Remove github helper scripts.

Tools/Scripts/sync-master-with-upstream

-#!/usr/bin/env python
-
-# Copyright 2012 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:
-# 1. Redistributions of source code must retain the above copyright
-#    notice, this list of conditions and the following disclaimer.
-# 2. 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.
-#
-# THIS SOFTWARE IS PROVIDED BY GOOGLE INC. ``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 APPLE INC. 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.
-
-# This script is intended to support the GitHub workflow described here:
-# https://trac.webkit.org/wiki/UsingGitHub
-#
-# This script fetches the latest changes from upstream, and pushes those
-# changes to the master branch in origin (e.g., your GitHub fork of WebKit).
-#
-# Running this script periodically will keep your fork of WebKit on GitHub in
-# sync with the "root" WebKit repository in upstream, assuming you've run
-# configure-github-as-upstream
-
-import subprocess
-
-def run(args, error_message = None):
-    if subprocess.call(args) != 0:
-        if error_message:
-            print error_message
-        exit(1)
-
-run(["git", "fetch", "upstream"], "Have you run configure-github-as-upstream to configure an upstream repository?")
-run(["git", "push", "origin", "upstream/master:master"])
-print "\nConsider running 'git merge origin' to update your local branches."