[PATCH] mq: remove unused repo._committingpatch-related code

[Brodie Rao]

# HG changeset patch
# User Brodie Rao <brodie at sf.io>
# Date 1379318909 25200
#      Mon Sep 16 01:08:29 2013 -0700
# Node ID 11fdf9f754b78d04abe81430607f292d1a04aa2c
# Parent  d4ed26beae0e41c86c413c69c1e6f13c32eb3d33
mq: remove unused repo._committingpatch-related code

This was introduced in 20ad8f0512a2 but its usage was removed in
46cc3b74e1c5.

diff --git a/hgext/mq.py b/hgext/mq.py
--- a/hgext/mq.py
+++ b/hgext/mq.py
@@ -283,15 +283,11 @@ def newcommit(repo, phase, *args, **kwar
             phase = phases.secret
     if phase is not None:
         backup = repo.ui.backupconfig('phases', 'new-commit')
-    # Marking the repository as committing an mq patch can be used
-    # to optimize operations like branchtags().
-    repo._committingpatch = True
     try:
         if phase is not None:
             repo.ui.setconfig('phases', 'new-commit', phase)
         return repo.commit(*args, **kwargs)
     finally:
-        repo._committingpatch = False
         if phase is not None:
             repo.ui.restoreconfig(backup)