Selling igas shares, page-12

I have a few left over from the AOE days, worth less than $10.00. As they are in my super fund, which I am closing down, I assume the decks have to be cleared of them first. Is there a procedure for writing off shares that involves little or no cost? The costs of selling them on the UK market would leave me out of pocket several hundred dollars so my preference is to just kill them off. Is this possible? Greatly appreciate any help with this.