Fixed #16225 -- Removed unused imports. Many thanks to Aymeric Augustin for the work on the patch and Alex for reviewing.

git-svn-id: http://code.djangoproject.com/svn/django/trunk@16539 bcc190cf-cafb-0310-a4f2-bffc1f526a37

tests/modeltests/transactions/models.py

@@ -7,7 +7,7 @@ commit-on-success behavior. Alternatively, you can manage the transaction
 manually.
 """
 
-from django.db import models, DEFAULT_DB_ALIAS
+from django.db import models
 
 class Reporter(models.Model):
     first_name = models.CharField(max_length=30)

tests/modeltests/transactions/tests.py

@@ -1,9 +1,6 @@
 from __future__ import with_statement
 
-import sys
-
-from django.db import connection, transaction, IntegrityError, DEFAULT_DB_ALIAS
-from django.conf import settings
+from django.db import connection, transaction, IntegrityError
 from django.test import TransactionTestCase, skipUnlessDBFeature
 
 from models import Reporter