Remove more libraries directives from server

pkg/analysis_server/lib/src/utilities/documentation.dart

Index: pkg/analysis_server/lib/src/utilities/documentation.dart
diff --git a/pkg/analysis_server/lib/src/utilities/documentation.dart b/pkg/analysis_server/lib/src/utilities/documentation.dart
index 8e8e6964aa1fbad1858d7a4b3e8882bb2554b2f6..2cc837e0b565e14c6c482a9251d2853f080ac0d6 100644
--- a/pkg/analysis_server/lib/src/utilities/documentation.dart
+++ b/pkg/analysis_server/lib/src/utilities/documentation.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 analysis_server.src.utilities.documentation;
-
 String getDartDocSummary(String str) {
   if (str == null) {
     return null;