Remove some more library directives

pkg/analysis_server/test/source/caching_put_package_map_provider_test.dart

Index: pkg/analysis_server/test/source/caching_put_package_map_provider_test.dart
diff --git a/pkg/analysis_server/test/source/caching_put_package_map_provider_test.dart b/pkg/analysis_server/test/source/caching_put_package_map_provider_test.dart
index efc37e876d840f1724b355ead273e23fbdd1fc1d..cc2a6c9f938960a03f6c24c78c5a6272ce256a19 100644
--- a/pkg/analysis_server/test/source/caching_put_package_map_provider_test.dart
+++ b/pkg/analysis_server/test/source/caching_put_package_map_provider_test.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 test.source.caching_pub_package_map_provider;
-
 import 'dart:convert';
 import 'dart:core';
 import 'dart:io' as io;