Delete a bunch of packages that are now on GitHub.

pkg/scheduled_test/test/scheduled_test/signal_error_test.dart

Index: pkg/scheduled_test/test/scheduled_test/signal_error_test.dart
diff --git a/pkg/scheduled_test/test/scheduled_test/signal_error_test.dart b/pkg/scheduled_test/test/scheduled_test/signal_error_test.dart
deleted file mode 100644
index 05a2cca076895b3d2c38edeb891116adda6ccaae..0000000000000000000000000000000000000000
--- a/pkg/scheduled_test/test/scheduled_test/signal_error_test.dart
+++ /dev/null
@@ -1,49 +0,0 @@
-// 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.
-
-import 'package:scheduled_test/scheduled_test.dart';
-import 'package:scheduled_test/src/mock_clock.dart' as mock_clock;
-
-import 'package:metatest/metatest.dart';
-import '../utils.dart';
-
-void main() => initTests(_test);
-
-void _test(message) {
-  initMetatest(message);
-
-  setUpTimeout();
-
-  expectTestsFail('an out-of-band error reported via signalError is '
-      'handled', () {
-    mock_clock.mock().run();
-    test('test', () {
-      schedule(() {
-        sleep(1).then((_) => currentSchedule.signalError('bad'));
-      });
-      schedule(() => sleep(2));
-    });
-  });
-
-  expectTestsFail('an out-of-band error reported via signalError that finished '
-      'after the schedule is handled', () {
-    mock_clock.mock().run();
-    test('test', () {
-      schedule(() {
-        var done = wrapAsync((_) {});
-        sleep(2).then((_) {
-          currentSchedule.signalError('bad');
-          done(null);
-        });
-      });
-      schedule(() => sleep(1));
-    });
-  });
-
-  expectTestsFail('a synchronous error reported via signalError is handled', () {
-    test('test', () {
-      currentSchedule.signalError('bad');
-    });
-  });
-}