Remove deprecated ms arguments for Timer and Future.

sdk/lib/async/future.dart

Index: sdk/lib/async/future.dart
diff --git a/sdk/lib/async/future.dart b/sdk/lib/async/future.dart
index 820ba0087d17181fbc5b5d92e6bfdad8b51a4906..5fdf82b25e7f707e737af4197a1f18341d9c17b4 100644
--- a/sdk/lib/async/future.dart
+++ b/sdk/lib/async/future.dart
@@ -149,11 +149,8 @@ abstract class Future<T> {
    * error.
    *
    * See [Completer]s, for futures with values that are computed asynchronously.
-   *
-   * *Deprecation note*: this method initially took an [int] as argument (the
-   * milliseconds to wait). It is now a [Duration].
    */
-  factory Future.delayed(var duration, [T computation()]) {
+  factory Future.delayed(Duration duration, [T computation()]) {
     // TODO(floitsch): no need to allocate a ThenFuture when the computation is
     // null.
     if (computation == null) computation = (() => null);