Bug 1529894 - fix flake failure on a CLOSED TREE.

python/mozbuild/mozpack/mozjar.py

@@ -14,7 +14,6 @@ from zipfile import (
     ZIP_DEFLATED,
 )
 from collections import OrderedDict
-from urlparse import urlparse, ParseResult
 import mozpack.path as mozpath
 from mozbuild.util import memoize