Remove obsolete StateChangeEvent and related code
StateChangeEvents are not used anymore. They have been used before for
the Socket.IO server implementation which has been removed in !343 (merged).
For the STOMP implementation, change event dispatching is handled by
WebsocketEventDispatcher
which uses the AfterUpdateEvent<T>
s
directly. With !368 (merged) those event have been improved to include a Map of
changes.
Related: !200 (closed), !343 (merged), !368 (merged)