Revert "Adding supported checks for getCssCanvasContext."

tests/html/document_test.dart

Index: tests/html/document_test.dart
diff --git a/tests/html/document_test.dart b/tests/html/document_test.dart
index fece53edeb88ec190262a1557e2db16633a76591..eb5d36398fe9e39928d31080a408c6db57fb2ccf 100644
--- a/tests/html/document_test.dart
+++ b/tests/html/document_test.dart
@@ -13,31 +13,12 @@ main() {
   var isUnknownElement =
       predicate((x) => x is UnknownElement, 'is UnknownElement');
 
-  test('CreateElement', () {
-    // FIXME: nifty way crashes, do it boring way.
-    expect(new Element.tag('span'), isElement);
-    expect(new Element.tag('div'), isDivElement);
-    expect(new Element.tag('a'), isAnchorElement);
-    expect(new Element.tag('bad_name'), isUnknownElement);
-  });
-
-  group('supports_cssCanvasContext', () {
-    test('supports_cssCanvasContext', () {
-      expect(HtmlDocument.supportsCssCanvasContext, true);
-    });
-  });
-
   group('getCssCanvasContext', () {
     test('getCssCanvasContext 2d', () {
-      var expectation = HtmlDocument.supportsCssCanvasContext ?
-        returnsNormally : throws;
-
-      expect(() {
-        var context = document.getCssCanvasContext('2d', 'testContext', 10, 20);
-        expect(context is CanvasRenderingContext2D, true);
-        expect(context.canvas.width, 10);
-        expect(context.canvas.height, 20);
-      }, expectation);
+      var context = document.getCssCanvasContext('2d', 'testContext', 10, 20);
+      expect(context is CanvasRenderingContext2D, true);
+      expect(context.canvas.width, 10);
+      expect(context.canvas.height, 20);
     });
   });