Removed the test portion that relies on transactions when the backend is mysql or mysql_old (it's still in place for all other backends).
Removed the test portion that relies on transactions when the backend is mysql or mysql_old (it's still in place for all other backends).

--HG--
extra : convert_revision : svn%3Abcc190cf-cafb-0310-a4f2-bffc1f526a37/django/trunk%406353

Belgabor/django,Belgabor/django,Belgabor/django