Remove more libraries directives from server

pkg/analysis_server/lib/src/domains/analysis/occurrences_dart.dart

Index: pkg/analysis_server/lib/src/domains/analysis/occurrences_dart.dart
diff --git a/pkg/analysis_server/lib/src/domains/analysis/occurrences_dart.dart b/pkg/analysis_server/lib/src/domains/analysis/occurrences_dart.dart
index 3204b2ff4bd7f09cc75fefb6ffe22999917ca9da..68d38c71565a14448a7871d04a508845f6d0b345 100644
--- a/pkg/analysis_server/lib/src/domains/analysis/occurrences_dart.dart
+++ b/pkg/analysis_server/lib/src/domains/analysis/occurrences_dart.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 domains.analysis.occurrences_dart;
-
 import 'package:analysis_server/plugin/analysis/occurrences/occurrences_core.dart';
 import 'package:analysis_server/src/protocol_server.dart' as protocol;
 import 'package:analyzer/dart/ast/ast.dart';