K8s/Folders: Remove kubernetesFolders flag and full path metadata (#99256)

* remove full path

* remove more

* remove KubernetesFolders tests

* remove feature toggles

* remove feature toggles

* skip permissions test

* skip permissions test

---------

Co-authored-by: Jack Baldry <jack.baldry@grafana.com>

pkg/services/folder/folderimpl/folder.go

@@ -11,12 +11,13 @@ import (
 	"sync"
 	"time"
 
-	"github.com/grafana/dskit/concurrency"
 	"github.com/prometheus/client_golang/prometheus"
 	"go.opentelemetry.io/otel/attribute"
 	"go.opentelemetry.io/otel/trace"
 	"golang.org/x/exp/slices"
 
+	"github.com/grafana/dskit/concurrency"
+
 	"github.com/grafana/grafana/pkg/apimachinery/identity"
 	"github.com/grafana/grafana/pkg/apis/folder/v0alpha1"
 	"github.com/grafana/grafana/pkg/bus"
@@ -315,10 +316,6 @@ func (s *Service) GetLegacy(ctx context.Context, q *folder.GetFolderQuery) (*fol
 		f.FullpathUIDs = f.UID // set full path to the folder UID
 	}
 
-	if s.features.IsEnabled(ctx, featuremgmt.FlagKubernetesFolders) {
-		f, err = s.setFullpath(ctx, f, q.SignedInUser, true)
-	}
-
 	return f, err
 }
 
@@ -784,13 +781,6 @@ func (s *Service) CreateLegacy(ctx context.Context, cmd *folder.CreateFolderComm
 		f.ParentUID = nestedFolder.ParentUID
 	}
 
-	if s.features.IsEnabled(ctx, featuremgmt.FlagKubernetesFolders) {
-		f, err = s.setFullpath(ctx, f, user, true)
-		if err != nil {
-			return nil, err
-		}
-	}
-
 	return f, nil
 }
 

pkg/services/folder/folderimpl/folder_unifiedstorage_test.go

@@ -200,7 +200,6 @@ func TestIntegrationFolderServiceViaUnifiedStorage(t *testing.T) {
 	}
 
 	featuresArr := []any{
-		featuremgmt.FlagKubernetesFolders,
 		featuremgmt.FlagKubernetesFoldersServiceV2}
 	features := featuremgmt.WithFeatures(featuresArr...)