Remove invalid portion of test

tests/html/audiocontext_test.dart

Index: tests/html/audiocontext_test.dart
diff --git a/tests/html/audiocontext_test.dart b/tests/html/audiocontext_test.dart
index 81e4e5f69c59d4e2ec16573114c9d9b8c6bee7fa..21e753f10d1cd151645e81d8bb3158f12ffc7559 100644
--- a/tests/html/audiocontext_test.dart
+++ b/tests/html/audiocontext_test.dart
@@ -28,21 +28,6 @@ main() {
       }
     });
 
-    test('createBuffer', () {
-      if(AudioContext.supported) {
-        var ctx = new AudioContext();
-        Float32List view = new Float32List.fromList([]);
-        try {
-          // Test that native overload is chosen correctly. Native
-          // implementation should throw 'SyntaxError' DomException because the
-          // buffer is empty.
-          AudioBuffer buffer = ctx.createBufferFromBuffer(view.buffer, false);
-        } catch (e) {
-          expect(e.name, DomException.SYNTAX);
-        }
-      }
-    });
-
     test('audioRenames', () {
       if(AudioContext.supported) {
         AudioContext context = new AudioContext();