Issue 3115 - Remove obsolete race condition workaround

modules/hgweb/files/hgweb.fcgi

 #!/usr/bin/env python
 #
 # An example CGI script to export multiple hgweb repos, edit as necessary
 
 import re
 
 # adjust python path if not a system-wide install:
 #import sys
 #sys.path.insert(0, "/path/to/python/lib")
 
@@ skipping 10 matching lines @@
 # UTF-8 and all your repo files to be displayed using UTF-8.
 #
 #import os
 #os.environ["HGENCODING"] = "UTF-8"
 
 from mercurial.hgweb.hgwebdir_mod import hgwebdir
 from flup.server.fcgi import WSGIServer
 from urllib import unquote
 import sys
 
-# Serialize ui.setconfig() accesses to avoid hitting http://bz.selenic.com/show_bug.cgi?id=3953
-from mercurial.ui import ui
-import thread
-
-config_lock = thread.allocate_lock()
-orig_setconfig = ui.setconfig
-
-def new_setconfig(*args, **kwargs):
-  with config_lock:
-    orig_setconfig(*args, **kwargs)
-
-ui.setconfig = new_setconfig
-
 # The config file looks like this.  You can have paths to individual
 # repos, collections of repos in a directory tree, or both.
 #
 # [paths]
 # virtual/path1 = /real/path1
 # virtual/path2 = /real/path2
 # virtual/root = /real/root/*
 # / = /real/root2/*
 #
 # [collections]
@@ skipping 32 matching lines @@
                 else:
                         return result
 
         def do_filter(self, iter, req):
                 for chunk in iter:
                         yield re.sub(r'\bemail=.*?([\r\n]|$)', r'email=xxxx\1', chunk)
                 if hasattr(iter, 'close'):
                         iter.close()
 
 WSGIServer(hgwebdir_with_filter('/etc/hgweb.ini'), debug=False).run()