The answer is simple, only if you think you need to. On your plants I would say its not necessary, maybe, if any, the purple punch 2 could lose a leaf or two. 🌱😁
Perhaps this info helps you out:
http://www.uk420.com/boards/index.php?/topic/365762-trimmimg-fan-leaves-on-an-auto/
https://www.autoflower.net/forums/threads/defoliation-with-auto-flowers.60544/