DW8 Growth, page-16397

if you don't want to use delisted sell them to someone...
(off market transfer using paper - old school style)
A third party (delisted) is the cleanest because its third party and ATO cant argue its just for tax purposes but it really depends on who else you know that will take them off you .

The other is and i am not sure whether its happened here but the administrators can actually give a certificate saying shares are worthless allowing you to write off for tax (worth asking the question)