Remove nodes spec., deprecated in new way

Change-Id: I2677b0a5c5b564648ec3a1e8a0cd9bb9ad289080
diff --git a/classes/cluster/sl-os-ovs/stacklight/init.yml b/classes/cluster/sl-os-ovs/stacklight/init.yml
index 2449e44..72a6267 100644
--- a/classes/cluster/sl-os-ovs/stacklight/init.yml
+++ b/classes/cluster/sl-os-ovs/stacklight/init.yml
@@ -29,6 +29,8 @@
     galera_server_maintenance_password: workshop
     galera_server_admin_password: workshop
 
+
+    grafana_influxdb_host: ${_param:stacklight_monitor_node01_address}
     heka_elasticsearch_host: ${_param:stacklight_monitor_address}
     elasticsearch_port: 9200
     stacklight_environment: ${_param:cluster_domain}