Zanzana: Remove usage from legacy access control (#98883)

* Zanzana: Remove usage from legacy access control

* remove unused

* remove zanzana client from services where it's not used

* remove unused metrics

* fix linter

pkg/api/user_test.go

@@ -10,12 +10,13 @@ import (
 	"testing"
 	"time"
 
-	"github.com/grafana/grafana/pkg/services/authn"
-	"github.com/grafana/grafana/pkg/services/authn/authntest"
 	"github.com/stretchr/testify/assert"
 	"github.com/stretchr/testify/require"
 	"golang.org/x/oauth2"
 
+	"github.com/grafana/grafana/pkg/services/authn"
+	"github.com/grafana/grafana/pkg/services/authn/authntest"
+
 	"github.com/grafana/grafana/pkg/api/dtos"
 	"github.com/grafana/grafana/pkg/api/response"
 	"github.com/grafana/grafana/pkg/api/routing"
@@ -30,7 +31,6 @@ import (
 	"github.com/grafana/grafana/pkg/services/accesscontrol/acimpl"
 	acmock "github.com/grafana/grafana/pkg/services/accesscontrol/mock"
 	"github.com/grafana/grafana/pkg/services/auth/idtest"
-	"github.com/grafana/grafana/pkg/services/authz/zanzana"
 	contextmodel "github.com/grafana/grafana/pkg/services/contexthandler/model"
 	"github.com/grafana/grafana/pkg/services/featuremgmt"
 	"github.com/grafana/grafana/pkg/services/login"
@@ -63,7 +63,7 @@ func TestUserAPIEndpoint_userLoggedIn(t *testing.T) {
 	hs := &HTTPServer{
 		Cfg:           settings,
 		SQLStore:      sqlStore,
-		AccessControl: acimpl.ProvideAccessControl(featuremgmt.WithFeatures(), zanzana.NewNoopClient()),
+		AccessControl: acimpl.ProvideAccessControl(featuremgmt.WithFeatures()),
 	}
 
 	mockResult := user.SearchUserQueryResult{