H4 - how to remove potions of immortality from shops?

[Taro]

I think I'm not the only one who wish there will be no potions of immortality in the game. They make game too easy, especially when you have strong "combat hero".

I know, there is an option to block this in map editor, but it still doesn't block the potions in blacksmiths etc. And blocking shops in towns is not a solution, because some other buildings recquires shops first.

EQ team made some changes in the shoplists, but didn't remove potions of immortality. So here is my question...

Is there anyone who knows how to remove or change potions of immortality for something else? Is there anyone who can do this?