Removed default @message from logstash dashboards

dashboards/logstash.js

@@ -160,7 +160,7 @@ dashboard.rows[3].panels = [
 dashboard.rows[4].panels = [
   {
     type: 'table',
-    fields: !_.isUndefined(ARGS.fields) ? ARGS.fields.split(',') : ['@timestamp','@message'],
+    fields: !_.isUndefined(ARGS.fields) ? ARGS.fields.split(',') : [],
     sort: !_.isUndefined(ARGS.sort) ? ARGS.sort.split(',') : [ARGS.timefield||'@timestamp','desc'],
     overflow: 'expand'
   }

dashboards/logstash.json

@@ -191,8 +191,6 @@
           },
           "overflow": "min-height",
           "fields": [
-            "@timestamp",
-            "@message"
           ],
           "highlight": [],
           "sortable": true,