history: Don't warn if message type is unknown
We are not updating the type of messages recieved in the past. So they will be marked as unknown. And so we don't want to spam log with this
Due to an influx of spam, we have had to impose restrictions on new accounts. Please see this page for instructions on how to get full permissions. Sorry for the inconvenience.
We are not updating the type of messages recieved in the past. So they will be marked as unknown. And so we don't want to spam log with this