polish up

src/main/resources/application.conf

@@ -6,14 +6,6 @@ app {
   clusterSystemName = ${clustering.cluster.name}
 }
 
-keycloak {
-    realm=Demo
-    resource=vanilla
-    auth-server-url=http://localhost:8080/auth
-    ssl-required=external
-    public-client=true
-}
-
 clustering {
   ip = "127.0.0.1"
   ip = ${?CLUSTER_IP}