AMBARI-12828 Kafka Service check fails after adding it to secure cluster (dsen)

ambari-server/src/main/resources/stacks/HDP/2.3/services/KAFKA/kerberos.json

@@ -5,7 +5,7 @@
       "identities": [
         {
           "name": "/smokeuser"
-        },
+        }
       ],
       "configurations": [
         {