try to use unversioned keystone endpoints everywhere

Change-Id: Iad2a3654d8ba181a7ad452d8aba872a8313d4ece
diff --git a/lib/neutron-legacy b/lib/neutron-legacy
index af9a3d2..fa508f8 100644
--- a/lib/neutron-legacy
+++ b/lib/neutron-legacy
@@ -368,7 +368,7 @@
 function create_nova_conf_neutron {
     iniset $NOVA_CONF DEFAULT use_neutron True
     iniset $NOVA_CONF neutron auth_type "password"
-    iniset $NOVA_CONF neutron auth_url "$KEYSTONE_AUTH_URI/v3"
+    iniset $NOVA_CONF neutron auth_url "$KEYSTONE_AUTH_URI"
     iniset $NOVA_CONF neutron username "$Q_ADMIN_USERNAME"
     iniset $NOVA_CONF neutron password "$SERVICE_PASSWORD"
     iniset $NOVA_CONF neutron user_domain_name "$SERVICE_DOMAIN_NAME"