Get rid of all the library tags.

test/basic_file_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.basic_file_test;
-
 import 'dart:io';
 import 'package:http_parser/http_parser.dart';
 import 'package:path/path.dart' as p;
 import 'package:scheduled_test/descriptor.dart' as d;
 import 'package:scheduled_test/scheduled_test.dart';
 
 import 'package:shelf_static/shelf_static.dart';
 import 'test_util.dart';
 
 void main() {
@@ skipping 177 matching lines @@
       schedule(() {
         var handler = createStaticHandler(d.defaultRoot);
 
         return makeRequest(handler, '/random.unknown').then((response) {
           expect(response.mimeType, isNull);
         });
       });
     });
   });
 }