bug#60996: 29.0.60; Native compile fails to remove temp file for trampoline

[Eli Zaretskii <eliz@gnu.org>]

> Cc: andrewjmoreton@gmail.com, 60996@debbugs.gnu.org
> Date: Thu, 26 Jan 2023 22:03:39 +0200
> From: Eli Zaretskii <eliz@gnu.org>
> 
> > But my question is: is this mechanism _really_ necessary?
> > 
> > >From my POV it's just a kludge that was, is and will be source of
> > problems.  Was never clear to me for which specific reason this was
> > implemented as, at the time, I had the impression that all Debian
> > requirements could be handled with what we already offered.
> > 
> > At the time I firmly opposed to this change, but I was told by Lars it
> > went into master "for discussion" (!?), indeed the review discussion
> > never happened...  and now we are left with this present.
> > 
> > Unless we have a very strong reason to keep it, I believe we should just
> > get rid of this mechanism, otherwise it will be source of pain for us
> > again and again in the future.
> 
> I'll have to refresh my memory about the reasons and the actual
> changeset.

I started a discussion on emacs-devel about this, let's see where it
leads us.

I think for now I should simply wrap the delete-file call at the end
of 'comp--native-compile' with 'ignore-errors'.  WDYT?