diff -r 947b44033a5f -r d9be905ca991 mercurial/revset.py
--- a/mercurial/revset.py	Fri Oct 10 13:08:28 2014 -0700
+++ b/mercurial/revset.py	Fri Oct 10 13:08:49 2014 -0700
@@ -2770,9 +2770,6 @@
             self.fastasc = asc.__iter__
             self.fastdesc = asc.__reversed__
 
-    def set(self):
-        return self
-
     def sort(self, reverse=False):
         self._ascending = not reverse