Update sl_k8s_calico models

Change-Id: I89bcf21ed3139110106d6bd3ffe8d30a61dbe553
diff --git a/classes/cluster/sl_k8s_calico/stacklight/client.yml b/classes/cluster/sl_k8s_calico/stacklight/client.yml
index f27aece..393449c 100644
--- a/classes/cluster/sl_k8s_calico/stacklight/client.yml
+++ b/classes/cluster/sl_k8s_calico/stacklight/client.yml
@@ -1,11 +1,9 @@
 classes:
+- system.docker.client
 - system.elasticsearch.client.single
 - system.grafana.client
 - system.grafana.client.datasource.prometheus
 - system.kibana.client.single
-- system.heka.log_collector.single
-- system.heka.log_collector.output.telegraf
-- cluster.sl_k8s_calico
 parameters:
   _param:
     # Elasticsearch/Kibana client parameters