remove unmaintained in readme

Author: arthanson

README.md

@@ -6,8 +6,6 @@
 
 ----
 
-# CURRENTLY UNMAINTAINED - contact coderholic to take over maintainership of this project #
-
 django-cities provides you with place related models (eg. Country, Region, City) and data (from [GeoNames](http://www.geonames.org/)) that can be used in your django projects.
 
 This package officially supports all currently supported versions of Python/Django: