Fix for importing properly InfluxDB Relay Dashboard

Change-Id: Icafe7bdaf9b4faa9848a41f91fb87da6d57e6dd3
Closes-Bug: PROD-20964
diff --git a/influxdb/files/grafana_dashboards/influxdb_relay_prometheus.json b/influxdb/files/grafana_dashboards/influxdb_relay_prometheus.json
index 40f1586..e9d3f0a 100644
--- a/influxdb/files/grafana_dashboards/influxdb_relay_prometheus.json
+++ b/influxdb/files/grafana_dashboards/influxdb_relay_prometheus.json
@@ -17,7 +17,7 @@
   "editable": true,
   "gnetId": null,
   "graphTooltip": 0,
-  "id": 398,
+  "id": null,
   "iteration": 1529505333807,
   "links": [],
   "panels": [