I don't think it quite works like that. You can set a minimum for your own ads or direct ads, and they'll use AdSense as backfill, but I'm pretty sure you can't say "no one cent AdSense clicks on my site" even in DFP.
The reason is, advertisers want cheap clicks, and if the publishers ban them, then Google is left with a bunch of cheap inventory it can't place, because then EVERYONE would ban them. And as I have said many times before - the publishers aren't driving this bus, the advertisers are. (Well, actually Google is, but their priority is advertisers)
That's the deal we signed up for, and that's the deal we got.