Merge pull request #90522 from beautytiger/fix/nilranger

cleanup: no need nil check before range

test/e2e/framework/util.go

@@ -224,11 +224,9 @@ func DeleteNamespaces(c clientset.Interface, deleteFilter, skipFilter []string)
 	var wg sync.WaitGroup
 OUTER:
 	for _, item := range nsList.Items {
-		if skipFilter != nil {
-			for _, pattern := range skipFilter {
-				if strings.Contains(item.Name, pattern) {
-					continue OUTER
-				}
+		for _, pattern := range skipFilter {
+			if strings.Contains(item.Name, pattern) {
+				continue OUTER
 			}
 		}
 		if deleteFilter != nil {