Datasource links were duplicated in the grafana dashboads. This now also
allows exporting grafana dashboards from the UI and just dropping them
into the assets directory and they will be wrapped by the manifest
generation script.
This can happen if you run multiple replicas, or if you redeploy kube-state-metrics.
In either case, prometheus records multiple metrics with the instance ip in, and the dashboard fails.
Use aggregation functions to get sensible output in either case
