How to remove ps2 hdl patch?

I have an iso of a ps2 game “starwars battlefront 2”. It is already hdl patched. My bro did it.

My prob is that i dont want to use hdl. I dont have a hdd. I want to burn it on a dvd and play the normal way. (my ps2 is modded)
I tried burning it as is but it dint work. the ps2 browser opened and recognised a ps2 disc but when i select it, it doesnt load. nothing happens.
plz help!!