remove unused imports

clean up imports of time.sleep and stat that are no (longer) used here

lib/ansible/utils/path.py

@@ -18,8 +18,6 @@ from __future__ import (absolute_import, division, print_function)
 __metaclass__ = type
 
 import os
-import stat
-from time import sleep
 from errno import EEXIST
 
 __all__ = ['unfrackpath']