Remove pkg/front_end's remaining dependencies on pkg/analyzer.

pkg/front_end/test/src/base/test_all.dart

Index: pkg/front_end/test/src/base/test_all.dart
diff --git a/pkg/front_end/test/src/base/test_all.dart b/pkg/front_end/test/src/base/test_all.dart
index a28fa7f045b83b2c0e11dec29cc81118d798bdd7..81c8ea8a67ec89b253dd6381eca0e8042a9e6903 100644
--- a/pkg/front_end/test/src/base/test_all.dart
+++ b/pkg/front_end/test/src/base/test_all.dart
@@ -7,7 +7,6 @@ import 'package:test_reflective_loader/test_reflective_loader.dart';
 import 'api_signature_test.dart' as api_signature;
 import 'file_repository_test.dart' as file_repository;
 import 'flat_buffers_test.dart' as flat_buffers;
-import 'libraries_reader_test.dart' as libraries_reader;
 import 'processed_options_test.dart' as processed_options;
 import 'uri_resolver_test.dart' as uri_resolver;
 
@@ -17,7 +16,6 @@ main() {
     api_signature.main();
     file_repository.main();
     flat_buffers.main();
-    libraries_reader.main();
     processed_options.main();
     uri_resolver.main();
   }, name: 'incremental');