Get rid of all the library tags.

test/log_middleware_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.log_middleware_test;
-
 import 'package:shelf/shelf.dart';
 import 'package:test/test.dart';
 
 import 'test_util.dart';
 
 void main() {
   bool gotLog;
 
   setUp(() {
     gotLog = false;
@@ skipping 45 matching lines @@
   test("doesn't log a HijackException", () {
     var handler = const Pipeline()
         .addMiddleware(logRequests(logger: logger))
         .addHandler((request) => throw const HijackException());
 
     expect(makeSimpleRequest(handler).whenComplete(() {
       expect(gotLog, isFalse);
     }), throwsA(new isInstanceOf<HijackException>()));
   });
 }