Remove sync_wpt and add wpt-export to replace it.

third_party/WebKit/Tools/Scripts/webkitpy/w3c/sync_wpt.py

-# Copyright 2016 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.
-
-"""A script for exporting and importing changes between the Chromium repo
-and the web-platform-tests repo.
-"""
-
-import argparse
-import logging
-
-from webkitpy.common.host import Host
-from webkitpy.w3c.wpt_github import WPTGitHub
-from webkitpy.w3c.test_exporter import TestExporter
-from webkitpy.w3c.test_importer import configure_logging
-
-_log = logging.getLogger(__name__)
-
-
-def main():
-    configure_logging()
-    options = parse_args()
-    host = Host()
-    wpt_github = WPTGitHub(host)
-    test_exporter = TestExporter(host, wpt_github, dry_run=options.dry_run)
-
-    test_exporter.run()
-
-
-def parse_args():
-    parser = argparse.ArgumentParser(description='WPT Sync')
-    parser.add_argument('--no-fetch', action='store_true')
-    parser.add_argument('--dry-run', action='store_true')
-    return parser.parse_args()