--- a/mercurial/revlogutils/deltas.py	Thu Aug 31 23:56:15 2023 +0200
+++ b/mercurial/revlogutils/deltas.py	Fri Sep 01 00:09:55 2023 +0200
@@ -14,7 +14,6 @@
 # import stuff from node for others to import from revlog
 from ..node import nullrev
 from ..i18n import _
-from ..pycompat import getattr
 
 from .constants import (
     COMP_MODE_DEFAULT,