Get rid of all the library tags.

lib/src/backend/platform_selector/evaluator.dart

Index: lib/src/backend/platform_selector/evaluator.dart
diff --git a/lib/src/backend/platform_selector/evaluator.dart b/lib/src/backend/platform_selector/evaluator.dart
index 7078e18fc8b433025c5b35bf167771982bac1653..9d04d6dc8faee5a9d64724653a59dde58f2c37f9 100644
--- a/lib/src/backend/platform_selector/evaluator.dart
+++ b/lib/src/backend/platform_selector/evaluator.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.
 
-library test.backend.platform_selector.evaluator;
-
 import '../operating_system.dart';
 import '../test_platform.dart';
 import 'ast.dart';