diff -r 0a1fb171dc1d -r 836867586b83 mercurial/repository.py
--- a/mercurial/repository.py	Tue Apr 03 15:08:09 2018 -0700
+++ b/mercurial/repository.py	Tue Apr 03 13:19:35 2018 -0700
@@ -493,12 +493,6 @@
     def file(f):
         """Obtain a filelog for a tracked path."""
 
-    def changectx(changeid):
-        """Obtains a changectx for a revision.
-
-        Identical to __getitem__.
-        """
-
     def setparents(p1, p2):
         """Set the parent nodes of the working directory."""