deleting custom zombies maps

[physicalmedia]

ive tried everything i could think of but they still appear in the mods section of the game. ive deleted the folder itself in both instances of the plutonium launcher and the mods folder that was in the game now i can still play them weirdly enough but im trying to remove it permanently to do a fresh install. honestly, i just want to wipe the slate clean and do a fresh install of both the game and plutonium but nothing seems to be working and i have no idea where to go or what to do to get a fresh install