fixup bad room list translation commit

src/Cache.h

@@ -91,7 +91,6 @@ from_json(const json &j, ReadReceiptKey &key)
 struct DescInfo
 {
         QString event_id;
-        QString username;
         QString userid;
         QString body;
         QString timestamp;

src/Utils.h

@@ -169,9 +169,6 @@ template<class T, class Event>
 DescInfo
 createDescriptionInfo(const Event &event, const QString &localUser, const QString &room_id)
 {
-        using Text  = mtx::events::RoomEvent<mtx::events::msg::Text>;
-        using Emote = mtx::events::RoomEvent<mtx::events::msg::Emote>;
-
         const auto msg    = boost::get<T>(event);
         const auto sender = QString::fromStdString(msg.sender);