diff --git a/lib/neutron_plugins/midonet b/lib/neutron_plugins/midonet
deleted file mode 100644
index ca0b70c76c..0000000000
--- a/lib/neutron_plugins/midonet
+++ /dev/null
@@ -1,10 +0,0 @@
-#!/bin/bash
-
-# REVISIT(devvesa): This file is needed so Q_PLUGIN=midonet will work.
-
-# FIXME(yamamoto): This function should not be here, but unfortunately
-# devstack calls it before the external plugins are fetched
-function has_neutron_plugin_security_group {
-    # 0 means True here
-    return 0
-}