Merge pull request #15659 from xlson/interl-metrics-fix

service: fix for disabled internal metrics.

pkg/cmd/grafana-server/server.go

@@ -31,6 +31,7 @@ import (
 	_ "github.com/grafana/grafana/pkg/infra/metrics"
 	_ "github.com/grafana/grafana/pkg/infra/serverlock"
 	_ "github.com/grafana/grafana/pkg/infra/tracing"
+	_ "github.com/grafana/grafana/pkg/infra/usagestats"
 	_ "github.com/grafana/grafana/pkg/plugins"
 	_ "github.com/grafana/grafana/pkg/services/alerting"
 	_ "github.com/grafana/grafana/pkg/services/auth"