Make analyzer strong-mode clean

pkg/analysis_server/lib/src/status/get_handler.dart

Index: pkg/analysis_server/lib/src/status/get_handler.dart
diff --git a/pkg/analysis_server/lib/src/status/get_handler.dart b/pkg/analysis_server/lib/src/status/get_handler.dart
index 13a149a3e01d0e071ae0f22bb07fe46173ab74a6..57efe19b0754e059e356678a99989f8e38de2f52 100644
--- a/pkg/analysis_server/lib/src/status/get_handler.dart
+++ b/pkg/analysis_server/lib/src/status/get_handler.dart
@@ -1415,8 +1415,6 @@ class GetHandler {
       _writeOption(
           buffer, 'Enable strict call checks', options.enableStrictCallChecks);
       _writeOption(buffer, 'Enable super mixins', options.enableSuperMixins);
-      _writeOption(
-          buffer, 'Enable trailing commas', options.enableTrailingCommas);
       _writeOption(buffer, 'Generate dart2js hints', options.dart2jsHint);
       _writeOption(buffer, 'Generate errors in implicit files',
           options.generateImplicitErrors);