fix flake8

awx/main/management/commands/run_dispatcher.py

@@ -5,7 +5,7 @@ import logging
 from django.conf import settings
 from django.core.cache import cache as django_cache
 from django.core.management.base import BaseCommand
-from django.db import connection as django_connection, connections
+from django.db import connection as django_connection
 
 from awx.main.utils.handlers import AWXProxyHandler
 from awx.main.dispatch import get_local_queuename, reaper