diff --git a/hgext/convert/monotone.py b/hgext/convert/monotone.py
--- a/hgext/convert/monotone.py
+++ b/hgext/convert/monotone.py
@@ -225,7 +225,6 @@ class monotone_source(converter_source, 
             return [self.rev]
 
     def getchanges(self, rev):
-        #revision = self.mtncmd("get_revision %s" % rev).split("\n\n")
         revision = self.mtnrun("get_revision", rev).split("\n\n")
         files = {}
         ignoremove = {}
diff --git a/hgext/zeroconf/Zeroconf.py b/hgext/zeroconf/Zeroconf.py
--- a/hgext/zeroconf/Zeroconf.py
+++ b/hgext/zeroconf/Zeroconf.py
@@ -1275,7 +1275,6 @@ class Zeroconf(object):
 			# the SO_REUSE* options have been set, so ignore it
 			#
 			pass
-		#self.socket.setsockopt(socket.SOL_IP, socket.IP_MULTICAST_IF, socket.inet_aton(self.intf) + socket.inet_aton('0.0.0.0'))
 		self.socket.setsockopt(socket.SOL_IP, socket.IP_ADD_MEMBERSHIP, socket.inet_aton(_MDNS_ADDR) + socket.inet_aton('0.0.0.0'))
 
 		self.listeners = []
diff --git a/mercurial/manifest.py b/mercurial/manifest.py
--- a/mercurial/manifest.py
+++ b/mercurial/manifest.py
@@ -64,9 +64,7 @@ class manifest(revlog.revlog):
 
         If the string is found m[start:end] are the line containing
         that string.  If start == end the string was not found and
-        they indicate the proper sorted insertion point.  This was
-        taken from bisect_left, and modified to find line start/end as
-        it goes along.
+        they indicate the proper sorted insertion point.
 
         m should be a buffer or a string
         s is a string'''
diff --git a/mercurial/obsolete.py b/mercurial/obsolete.py
--- a/mercurial/obsolete.py
+++ b/mercurial/obsolete.py
@@ -55,10 +55,6 @@ import struct
 import util, base85
 from i18n import _
 
-# the obsolete feature is not mature enought to be enabled by default.
-# you have to rely on third party extension extension to enable this.
-_enabled = False
-
 _pack = struct.pack
 _unpack = struct.unpack
 
diff --git a/mercurial/setdiscovery.py b/mercurial/setdiscovery.py
--- a/mercurial/setdiscovery.py
+++ b/mercurial/setdiscovery.py
@@ -84,9 +84,6 @@ def findcommonheads(ui, local, remote,
                     abortwhenunrelated=True):
     '''Return a tuple (common, anyincoming, remoteheads) used to identify
     missing nodes from or in remote.
-
-    shortcutlocal determines whether we try use direct access to localrepo if
-    remote is actually local.
     '''
     roundtrips = 0
     cl = local.changelog