diff -r 733db72f0f54 -r 2ac4f3e97813 mercurial/filelog.py
--- a/mercurial/filelog.py	Mon Sep 24 11:27:47 2018 -0700
+++ b/mercurial/filelog.py	Mon Sep 24 11:16:33 2018 -0700
@@ -53,10 +53,6 @@
     def linkrev(self, rev):
         return self._revlog.linkrev(rev)
 
-    # Unused.
-    def flags(self, rev):
-        return self._revlog.flags(rev)
-
     def commonancestorsheads(self, node1, node2):
         return self._revlog.commonancestorsheads(node1, node2)