[Feature Request] cvar to disable the Kill Feed

[eduzappa18]

A serverside cvar to stop sending the kill messages to all players
(but still being able to register them on the log)

No idea if is possible to do it, but would be nice to have it for people who want to add more "realism" to their servers, or to have more customisable messages using the "kill" event.

You could name it sv_deathmessages or sv_killfeed...
It should be set to '1' by default.