Chore: Remove bus.Bus field (#47695) (#47704)

* Chore: Remove bus.Bus field

* fix integration test

(cherry picked from commit e86b6662a1)

Co-authored-by: Serge Zaitsev <serge.zaitsev@grafana.com>

pkg/api/folder_test.go

@@ -9,7 +9,6 @@ import (
 	"github.com/grafana/grafana/pkg/api/dtos"
 	"github.com/grafana/grafana/pkg/api/response"
 	"github.com/grafana/grafana/pkg/api/routing"
-	"github.com/grafana/grafana/pkg/bus"
 	"github.com/grafana/grafana/pkg/models"
 	"github.com/grafana/grafana/pkg/services/dashboards"
 	"github.com/grafana/grafana/pkg/services/featuremgmt"
@@ -139,7 +138,6 @@ func createFolderScenario(t *testing.T, desc string, url string, routePattern st
 	cmd models.CreateFolderCommand, fn scenarioFunc) {
 	t.Run(fmt.Sprintf("%s %s", desc, url), func(t *testing.T) {
 		hs := HTTPServer{
-			Bus:           bus.GetBus(),
 			Cfg:           setting.NewCfg(),
 			folderService: folderService,
 			Features:      featuremgmt.WithFeatures(),