Not Just Default PreFabs

Changed

- removed final sign from Bunker Barn POI

So yeah, there was one more sign in this POI, way down in the depths of the catacombs. For some reason this sign did not set off the error during initial testing after removing the other three signs. Not sure if this had to do with it's location being so far down maybe, and not loading? Iunno. Anyway, it's gone now.