--- a/mercurial/revlogutils/sidedata.py	Sun Feb 20 15:18:15 2022 -0700
+++ b/mercurial/revlogutils/sidedata.py	Thu Mar 03 17:34:00 2022 +0100
@@ -30,7 +30,6 @@
 the concept.
 """
 
-from __future__ import absolute_import
 
 import collections
 import struct