Removed unused imports.

- Legacy-Id: 10231

ietf/utils/test_utils.py

@@ -41,11 +41,9 @@ import urllib2 as urllib
 from difflib import unified_diff
 
 import django.test
-from django.db import connection, connections, DEFAULT_DB_ALIAS
-from django.test.testcases import connections_support_transactions
+from django.db import connection
 from django.test.client import Client
 from django.conf import settings
-from django.core.management import call_command
 
 import debug                            # pyflakes:ignore