RBAC: Remove dashboard and folder guardians (#104646)

* replace usage of folder guardians with access control evaluators

* remove NewByFolderUID guardian

* bring up to date

* fix test

* more test fixes, and don't fetch the folder before evaluating lib element access

* change what error is returned

* fix alerting test

* try to fix linter errors

* replace the use of newByFolder guardian with direct access control evaluator checks

* remove newByFolder guardian

* get rid of dashboard and folder guardians

* undo unwanted change

* undo unwanted change

* undo unwanted change

* update code owners

pkg/storage/unified/federated/federatedtests/stats_test.go

@@ -21,7 +21,6 @@ import (
 	"github.com/grafana/grafana/pkg/services/featuremgmt"
 	"github.com/grafana/grafana/pkg/services/folder"
 	"github.com/grafana/grafana/pkg/services/folder/folderimpl"
-	"github.com/grafana/grafana/pkg/services/guardian"
 	ngmodels "github.com/grafana/grafana/pkg/services/ngalert/models"
 	ngalertstore "github.com/grafana/grafana/pkg/services/ngalert/store"
 	"github.com/grafana/grafana/pkg/services/search/sort"
@@ -45,13 +44,6 @@ func TestDirectSQLStats(t *testing.T) {
 
 	dashStore, err := database.ProvideDashboardStore(db, cfg, featuremgmt.WithFeatures(), tagimpl.ProvideService(db))
 	require.NoError(t, err)
-	fakeGuardian := &guardian.FakeDashboardGuardian{
-		CanSaveValue: true,
-		CanEditUIDs:  []string{},
-		CanViewUIDs:  []string{},
-	}
-	guardian.MockDashboardGuardian(fakeGuardian)
-	require.NoError(t, err)
 	fStore := folderimpl.ProvideStore(db)
 	folderSvc := folderimpl.ProvideService(
 		fStore, actest.FakeAccessControl{ExpectedEvaluate: true}, bus.ProvideBus(tracing.InitializeTracerForTest()), dashStore, folderimpl.ProvideDashboardFolderStore(db),