[models] Minor simplification in update_all

nemesifier · nemesifier · commit 7ea174aef036 · 2017-07-25T14:38:29.000+02:00
diff --git a/django_netjsongraph/base/topology.py b/django_netjsongraph/base/topology.py
@@ -303,5 +303,4 @@ def update_all(cls, label=None):
             print_info('Updating topology {0}'.format(topology))
             with log_failure('update', topology):
                 topology.update()
-        Link = cls().link_model
-        Link.delete_expired_links()
+        cls().link_model.delete_expired_links()
