Here's the complete guide for deleting alt+number macros:
1st: Tried putting macros on numbers 1,2,3 & 4 as A,B,C & D: http://imgur.com/OEaBpeT
2nd: Exit game and go to zhypermu folder>data>and search for macro, and this will appear:http://imgur.com/PMg61cv
3rd: Select and open "Macro.txt" and delete everything inside that notepad and hit save:http://imgur.com/4564Jn0
4th: Go back in-game and try using macros 1,2,3 & 4: http://imgur.com/gYuD7vw
And nothing appears, back to default.