Fixed a messy test case (regressiontests/templates/loaders) that could cause...

Fixed a messy test case (regressiontests/templates/loaders) that could cause future tests to fail by not cleaning up after itself.

git-svn-id: http://code.djangoproject.com/svn/django/trunk@7567 bcc190cf-cafb-0310-a4f2-bffc1f526a37