feat(instrumentation): changed name to senders

pkg/metrics/report_usage.go → pkg/metrics/send.go

@@ -9,7 +9,7 @@ import (
 
 	"github.com/grafana/grafana/pkg/bus"
 	"github.com/grafana/grafana/pkg/log"
-	"github.com/grafana/grafana/pkg/metrics/receiver"
+	"github.com/grafana/grafana/pkg/metrics/senders"
 	m "github.com/grafana/grafana/pkg/models"
 	"github.com/grafana/grafana/pkg/plugins"
 	"github.com/grafana/grafana/pkg/setting"