diff -r 06f1e4e309ed -r b7cdfa2527be mercurial/strutil.py
--- a/mercurial/strutil.py	Fri Apr 24 17:32:18 2009 +0200
+++ b/mercurial/strutil.py	Fri Apr 24 17:32:18 2009 +0200
@@ -32,10 +32,3 @@
             break
         yield c
         end = c - 1
-
-def rsplit(s, sep=None, maxsplit=-1):
-    try:
-        return s.rsplit(sep, maxsplit)
-    except AttributeError:
-        return [chunk[::-1] for chunk in
-                s[::-1].split(sep, maxsplit)[::-1]]