Cannot boot majaro after Xorgconfiguration

Well why would you do that?

Maybe thats for after… for now please see this:

Then if all you need to do is delete that file, the command would be:

sudo rm /etc/X11/xorg.conf

And to reboot you can use

systemctl reboot

(note - commands and files in linux are CaSe-sEnSiTiVe)