removed info@pythonware.com reference

(should probably remove all traces of _xmlrpclib, but I'll leave that
for another day.)

Lib/xmlrpclib.py

@@ -439,8 +439,7 @@ if not _bool_is_builtin:
 # XML parsers
 
 try:
-    # optional xmlrpclib accelerator.  for more information on this
-    # component, contact info@pythonware.com
+    # optional xmlrpclib accelerator
     import _xmlrpclib
     FastParser = _xmlrpclib.Parser
     FastUnmarshaller = _xmlrpclib.Unmarshaller