Look, you can't!
Also, put this command to chat if you don't want Notifications about the in below command all the time:
/gamerule SendCommandFeedback false
Note! Command block must be set "repeat" and "always active"
Warning! I haven't figured out how to undo this command yet. so don’t choose a world where you have important things to keep. I'll tell you the solution as soon as I come up with it.