Remove the http package from the repo.

tools/remove_html_imports.py

-#!/usr/bin/env python
-# Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-# for details. All rights reserved. Use of this source code is governed by a
-# BSD-style license that can be found in the LICENSE file.
-
-'''Tool for removing dart:html and related imports from a library.
-
-Copy SOURCE to TARGET, removing any lines that import dart:html.
-
-Usage:
-  python tools/remove_html_imports.py SOURCE TARGET
-'''
-
-import os
-import re
-import shutil
-import sys
-
-HTML_IMPORT = re.compile(r'''^import ["']dart:(html|html_common|indexed_db'''
-                         r'''|js|svg|web_(audio|gl|sql))["'];$''',
-                         flags=re.MULTILINE)
-
-def main(argv):
-  source = argv[1]
-  target = argv[2]
-  shutil.rmtree(target)
-  shutil.copytree(source, target, ignore=shutil.ignore_patterns('.svn'))
-
-  for root, subFolders, files in os.walk(target):
-    for path in files:
-      if not path.endswith('.dart'): next
-      with open(os.path.join(root, path), 'r+') as f:
-        contents = f.read()
-        f.seek(0)
-        f.truncate()
-        f.write(HTML_IMPORT.sub(r'// import "dart:\1";', contents))
-
-if __name__ == '__main__':
-  sys.exit(main(sys.argv))