Remove some more library directives

pkg/analysis_server/test/completion_test.dart

Index: pkg/analysis_server/test/completion_test.dart
diff --git a/pkg/analysis_server/test/completion_test.dart b/pkg/analysis_server/test/completion_test.dart
index ceabdba1fe9cc0877927bb11bad35edc6edbb362..691a58f00551f3acbf97ba20b3fc6ad4ca572fb7 100644
--- a/pkg/analysis_server/test/completion_test.dart
+++ b/pkg/analysis_server/test/completion_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.completion.support;
-
 import 'dart:async';
 import 'dart:collection';