Removed awful hack.  9.0's pg_regress now uses the new CREATE OR REPLACE LANGUAGE, which means it doesn't break when we load PL/pgsql.
Removed awful hack.  9.0's pg_regress now uses the new CREATE OR
REPLACE LANGUAGE, which means it doesn't break when we load PL/pgsql.

leto/plparrot,leto/plparrot,leto/plparrot