Removed unneeded imports in db.models init

Author: claudep

django/db/models/__init__.py

@@ -1,6 +1,4 @@
-from django.conf import settings
 from django.core.exceptions import ObjectDoesNotExist, ImproperlyConfigured
-from django.db import connection
 from django.db.models.loading import get_apps, get_app, get_models, get_model, register_models
 from django.db.models.query import Q
 from django.db.models.expressions import F