Remove some more library directives

pkg/analysis_server/test/abstract_single_unit.dart

Index: pkg/analysis_server/test/abstract_single_unit.dart
diff --git a/pkg/analysis_server/test/abstract_single_unit.dart b/pkg/analysis_server/test/abstract_single_unit.dart
index 4a2c39cdd80cfe05df2d711ffe5ae0ffb12f85f5..bc8fe5c102722cea5275c8cda9812753140a6ae6 100644
--- a/pkg/analysis_server/test/abstract_single_unit.dart
+++ b/pkg/analysis_server/test/abstract_single_unit.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.services.src.index.abstract_single_file;
-
 import 'dart:async';
 
 import 'package:analyzer/dart/ast/ast.dart';