update tests to be specific about the versions they are testing instead of floating

pkg/registry/core/persistentvolume/strategy_test.go

@@ -19,7 +19,6 @@ package persistentvolume
 import (
 	"testing"
 
-	"k8s.io/kubernetes/pkg/api/legacyscheme"
 	apitesting "k8s.io/kubernetes/pkg/api/testing"
 	api "k8s.io/kubernetes/pkg/apis/core"
 
@@ -29,7 +28,7 @@ import (
 
 func TestSelectableFieldLabelConversions(t *testing.T) {
 	apitesting.TestSelectableFieldLabelConversionsOfKind(t,
-		legacyscheme.Registry.GroupOrDie(api.GroupName).GroupVersions[0].String(),
+		"v1",
 		"PersistentVolume",
 		PersistentVolumeToSelectableFields(&api.PersistentVolume{}),
 		map[string]string{"name": "metadata.name"},