I am a bit confused by your question. Are you saying you want the print to have no tanning and does not use amidol? Setting aside the amidol reference for a minute, tanning is essential to the bromoil process. Can you please reword your question in more detail?
use a developer having a minimal hardening effect on the gelatine of the paper: Amidol and Sodium Sulphite, or: Kodak Dektol diluted 1 part developer to 10 parts water.