Remove library tags, they aren't needed

lib/src/multi_package_resolver.dart

Index: lib/src/multi_package_resolver.dart
diff --git a/lib/src/multi_package_resolver.dart b/lib/src/multi_package_resolver.dart
index 6a9ad1397bba6ed30aa6e8a22465572f4cc4c111..66905eca920fb7b54801265e105d244a7fd2b67d 100644
--- a/lib/src/multi_package_resolver.dart
+++ b/lib/src/multi_package_resolver.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 dev_compiler.src.multi_package_resolver;
-
 import 'dart:io';
 
 import 'package:analyzer/src/generated/java_io.dart';