Remove unused dart:async imports. (#32)
As of Dart 2.1, Future/Stream have been exported from dart:core.
diff --git a/lib/src/directory_descriptor.dart b/lib/src/directory_descriptor.dart
index a7e1d58..e4f7b80 100644
--- a/lib/src/directory_descriptor.dart
+++ b/lib/src/directory_descriptor.dart
@@ -2,7 +2,6 @@
// 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 'dart:async';
import 'dart:io';
import 'package:async/async.dart';
diff --git a/lib/src/utils.dart b/lib/src/utils.dart
index d9d8017..26fd3ab 100644
--- a/lib/src/utils.dart
+++ b/lib/src/utils.dart
@@ -2,7 +2,6 @@
// 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 'dart:async';
import 'dart:convert';
import 'package:path/path.dart' as p;
diff --git a/test/utils.dart b/test/utils.dart
index 3ea1e29..5eb84f7 100644
--- a/test/utils.dart
+++ b/test/utils.dart
@@ -2,8 +2,6 @@
// 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 'dart:async';
-
import 'package:test/test.dart';
/// Converts a [Stream<List<int>>] to a flat byte future.
