diff -r 898c575833c9 -r 595bd4c5b135 mercurial/discovery.py
--- a/mercurial/discovery.py	Sun Jan 06 04:36:30 2013 +0100
+++ b/mercurial/discovery.py	Sat Jan 05 18:57:09 2013 +0100
@@ -341,8 +341,3 @@
 def visibleheads(repo):
     """return the set of visible head of this repo"""
     return repo.filtered('unserved').heads()
-
-
-def visiblebranchmap(repo):
-    """return a branchmap for the visible set"""
-    return repo.filtered('unserved').branchmap()