Get rid of all the library tags.

test/pipeline_test.dart

 // Copyright (c) 2014, 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.pipeline_test;
-
 import 'package:shelf/shelf.dart';
 import 'package:test/test.dart';
 
 import 'test_util.dart';
 
 void main() {
   test('compose middleware with Pipeline', () {
     int accessLocation = 0;
 
     var middlewareA = createMiddleware(requestHandler: (request) {
@@ skipping 64 matching lines @@
       accessLocation = 3;
       return syncHandler(request);
     });
 
     return makeSimpleRequest(handler).then((response) {
       expect(response, isNotNull);
       expect(accessLocation, 5);
     });
   });
 }