Run 2to3 -f future . -w

This will remove imports from __future__ that are no longer needed.

https://docs.python.org/3.5/library/2to3.html#2to3fixer-future

openedx/core/lib/tempdir.py

@@ -1,6 +1,6 @@
 """Make temporary directories nicely."""
 
-from __future__ import absolute_import
+
 import atexit
 import os.path
 import shutil