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/services/alerting/engine_test.go

@@ -7,7 +7,6 @@ import (
 	"testing"
 	"time"
 
-	"github.com/grafana/grafana/pkg/bus"
 	"github.com/grafana/grafana/pkg/components/simplejson"
 	"github.com/grafana/grafana/pkg/infra/tracing"
 	"github.com/grafana/grafana/pkg/infra/usagestats"
@@ -100,13 +99,12 @@ func (a *AlertStoreMock) SetAlertState(_ context.Context, _ *models.SetAlertStat
 }
 
 func TestEngineProcessJob(t *testing.T) {
-	bus := bus.New()
 	usMock := &usagestats.UsageStatsMock{T: t}
 	tracer, err := tracing.InitializeTracerForTest()
 	require.NoError(t, err)
 
 	store := &AlertStoreMock{}
-	engine := ProvideAlertEngine(nil, bus, nil, nil, usMock, ossencryption.ProvideService(), nil, tracer, store, setting.NewCfg(), nil)
+	engine := ProvideAlertEngine(nil, nil, nil, usMock, ossencryption.ProvideService(), nil, tracer, store, setting.NewCfg(), nil)
 	setting.AlertingEvaluationTimeout = 30 * time.Second
 	setting.AlertingNotificationTimeout = 30 * time.Second
 	setting.AlertingMaxAttempts = 3