Get rid of all the library tags.

test/sample_test.dart

 // Copyright (c) 2015, 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.
 
-library shelf_static.sample_test;
-
 import 'dart:async';
 import 'dart:io';
 
 import 'package:path/path.dart' as p;
 import 'package:scheduled_test/scheduled_test.dart';
 
 import 'package:shelf/shelf.dart';
 import 'package:shelf_static/shelf_static.dart';
 
 import 'test_util.dart';
@@ skipping 66 matching lines @@
   var handler = createStaticHandler(_samplePath);
 
   return new Future.sync(() => handler(request));
 }
 
 String get _samplePath {
   var sampleDir = p.join(p.current, 'example', 'files');
   assert(FileSystemEntity.isDirectorySync(sampleDir));
   return sampleDir;
 }