Remove outdated event registrations

src/events/imagepackevent.h

@@ -89,6 +89,4 @@ public:
     QUO_EVENT(ImagePackEvent, "im.ponies.room_emotes")
     using KeyedStateEventBase::KeyedStateEventBase;
 };
-
-REGISTER_EVENT_TYPE(ImagePackEvent)
 }

src/events/joinrulesevent.h

@@ -40,5 +40,4 @@ public:
      */
     QJsonArray allow() const;
 };
-REGISTER_EVENT_TYPE(JoinRulesEvent)
 }