Update Stacklight client models

Change-Id: I02d858e892e4e564a739b4aebbe0ca766aa81dcc
diff --git a/classes/cluster/sl_k8s_contrail/stacklight/client.yml b/classes/cluster/sl_k8s_contrail/stacklight/client.yml
index 393449c..001d1bd 100644
--- a/classes/cluster/sl_k8s_contrail/stacklight/client.yml
+++ b/classes/cluster/sl_k8s_contrail/stacklight/client.yml
@@ -1,9 +1,9 @@
 classes:
-- system.docker.client
 - system.elasticsearch.client.single
 - system.grafana.client
 - system.grafana.client.datasource.prometheus
 - system.kibana.client.single
+- cluster.sl_k8s_contrail
 parameters:
   _param:
     # Elasticsearch/Kibana client parameters