Turn off ranking

Hi dudes i got a dumb problem. I set up a Deathmatch server with CSDM. Now i want to turn off that stiuped "/rank" ranking, but i dont know how to.
I cant find a value in any config that would turn it off. Is the only way to turn it off via the amx menu on the game server? Cause i dont want that "ranking is disabled on that server" message.
Moreover, where can i change the "value" for ex. "Kills" that the ranking is sorted with? (I think at default its a combination of some differenr values)