automatic updating of last timestamp for bloc cache

lib/state/app/modules/marianumMessage/bloc/marianum_message_bloc.dart

@@ -7,12 +7,6 @@ sealed class MarianumMessageEvent extends LoadableHydratedBlocEvent<MarianumMess
 class MessageEvent extends MarianumMessageEvent {}
 
 class MarianumMessageBloc extends LoadableHydratedBloc<MarianumMessageEvent, MarianumMessageState, MarianumMessageRepository> {
-  MarianumMessageBloc() {
-    on<MessageEvent>((event, emit) {
-      add(Emit((state) => state.copyWith.messageList(messages: [])));
-    });
-  }
-
   @override
   Future<void> gatherData() async {
     var messages = await repo.getMessages();