Advanced UI has a Frame Mode where you can move elements around, so could slide the elements off to the edge of the screen. They would still activate, but you won't see them.
No, Thank You can suppress most on screen messaging, but i don't think the area is one of them.
Advanced UI does not have that Notification movable sadly. I also tried Azurah Interface Enhanced, It has the movable notification box but you cant move it off screen nor delete it
XTG has a cool feature when the health is low your heart beat starts going crazy, sadly its not a sound but your whole screen flashes red