I thought so too, but it makes more sense to me that "stop desiring things" is a koan, and not a literal instruction.
A koan is like a little paradox, a word problem that a student needs to solve before being allowed to the next "level". The solution is that you cannot stop desiring. Even if you try very hard, you will still have, at the very least, the desire to stop desiring. Source: I've been listening to Alan Watts