The following information on the removal of the anti-detriment payment can be found on the ATO website, Anti-detriment payment (tax saving amount)

From 1 July 2017, funds may only include an anti-detriment payment as part of a death benefit if the member died on or before 30 June 2017. The fund must make this payment by 30 June 2019. From 1 July 2019, no anti-detriment payment will be available for funds members, regardless of when the member has died. The government removed this provision to ensure consistent treatment of lump sum death benefits across all super funds.

Processing a Lump Sum Death Benefit Payment in Class

If the member died after 30 June 2017 you will be unable to chose 'Death Benefit Increment' in the Payment Details tab. 

Refer to Anti-detriment payment (tax saving amount on the ATO website for further information.