pkg/unittest: test cleanup

pkg/unittest/test/unittest_middle_exception_test.dart

-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-library unittestTest;
-import 'dart:isolate';
-import 'dart:async';
-import 'package:unittest/unittest.dart';
-
-part 'unittest_test_utils.dart';
-
-var testName = 'late exception test';
-
-var testFunction = (_) {
-  test('testOne', () { expect(true, isTrue); });
-  test('testTwo', () { expect(true, isFalse); });
-  test('testThree', () {
-    var done = expectAsync(() {});
-    _defer(() {
-      expect(true, isTrue);
-      done();
-    });
-  });
-};
-
-var expected = buildStatusString(2, 1, 0,
-    'testOne::testTwo:Expected: false Actual: <true>:testThree');