"Reverting 23366"

tests/html/element_test.dart

Index: tests/html/element_test.dart
diff --git a/tests/html/element_test.dart b/tests/html/element_test.dart
index 353733501166435b43a97792b189c1d0a43994aa..aae4dda3510372eff6f875eaa75b4cabc00a6499 100644
--- a/tests/html/element_test.dart
+++ b/tests/html/element_test.dart
@@ -500,50 +500,6 @@ main() {
       expect(el.children.getRange(1, 2).length, 1);
     });
 
-    test('retainWhere', () {
-      var el = makeElementWithChildren();
-      expect(el.children.length, 3);
-      el.children.retainWhere((e) => true);
-      expect(el.children.length, 3);
-
-      el = makeElementWithChildren();
-      expect(el.children.length, 3);
-      el.children.retainWhere((e) => false);
-      expect(el.children.length, 0);
-
-      el = makeElementWithChildren();
-      expect(el.children.length, 3);
-      el.children.retainWhere((e) => e.localName == 'input');
-      expect(el.children.length, 1);
-
-      el = makeElementWithChildren();
-      expect(el.children.length, 3);
-      el.children.retainWhere((e) => e.localName == 'br');
-      expect(el.children.length, 1);
-    });
-
-    test('removeWhere', () {
-      var el = makeElementWithChildren();
-      expect(el.children.length, 3);
-      el.children.removeWhere((e) => true);
-      expect(el.children.length, 0);
-
-      el = makeElementWithChildren();
-      expect(el.children.length, 3);
-      el.children.removeWhere((e) => false);
-      expect(el.children.length, 3);
-
-      el = makeElementWithChildren();
-      expect(el.children.length, 3);
-      el.children.removeWhere((e) => e.localName == 'input');
-      expect(el.children.length, 2);
-
-      el = makeElementWithChildren();
-      expect(el.children.length, 3);
-      el.children.removeWhere((e) => e.localName == 'br');
-      expect(el.children.length, 2);
-    });
-
     testUnsupported('sort', () {
       var l = makeElementWithChildren().children;
       l.sort();