Removed obsolete note about installing psycopg2 on Windows.

psycopg2 now publishes binary wheel files for Windows
so you can install it using pip.

docs/ref/databases.txt

@@ -97,11 +97,6 @@ Django supports PostgreSQL 9.1 and higher. It requires the use of `psycopg2`_
 
 .. _psycopg2: http://initd.org/psycopg/
 
-If you're on Windows, check out the unofficial `compiled Windows version`_
-of psycopg2.
-
-.. _compiled Windows version: http://stickpeople.com/projects/python/win-psycopg/
-
 PostgreSQL connection settings
 -------------------------------