Hiding PS4 trophies

[Ducks_AWESOME12]

Recently I had a friend stay with me and he brought with him a few games of his that I personally wouldn't buy/play. Anyway, I made a spare acc so that we could play 2 player without me getting any of those games on my trophy list, but one did. Either we forgot to sign out or something but I have it on my list now and cant remove it. I've tried using the ps3 online mode and hiding it on there and syncing trophies etc. but that hasnt worked. Just wondering if it'll stay there or if there's a way on here that I can hide it just from my list since its on 0%.

 

Thanks