Eeeewww, is that one still in That was the reason I stopped playing beta 3, since there's nothing you can do about it as a player as we don't have a disenchant spell.

Luckily I haven't seen it in my current game, but this is quite a showstopper imho. Hope they fix it soon now.

There is a disenchant spell btw.

If you're talking about the "Dispel Enchantment" spell, this removes a random negative enchantment from a city only.  I don't even know how negative enchantments are handled with the limit on city enchantments.