--- a/mercurial/repository.py	Mon Sep 24 11:27:47 2018 -0700
+++ b/mercurial/repository.py	Mon Sep 24 11:16:33 2018 -0700
@@ -502,9 +502,6 @@
     def linkrev(rev):
         """Obtain the changeset revision number a revision is linked to."""
 
-    def flags(rev):
-        """Obtain flags used to affect storage of a revision."""
-
     def iscensored(rev):
         """Return whether a revision's content has been censored."""