Some non-nitwit villagers have no trades

Some villagers generated have no trading window.
This is intended for nitwits, but not for any other profession.

seed: 3621259961888105382
coords: -769 -1736 superflat
A few are located here:

• Librarian
• 2 butchers (out of 5 or so)
• 1 smith (out of the whole bunch)