bug#21612: 24.5; Configuration variable to delete auto-save file when intentionally killing buffer

[Eli Zaretskii]

> From: Lars Ingebrigtsen <larsi@gnus.org>
> Cc: mrok4a@gmail.com,  21612@debbugs.gnu.org,  rms@gnu.org
> Date: Wed, 18 Aug 2021 15:38:11 +0200
> 
> Eli Zaretskii <eliz@gnu.org> writes:
> 
> > We could make that variable have a third value, which would then
> > override the above logic, no?
> 
> I think it would make more sense to have the non-nil value query the
> user first in this case

But that would exactly do what I asked not to do, and you agreed: ask
that question by default.  Because the default value of the variable
is non-nil...