bug#41250: 28.0.50; Dired displays unconditionally ls-switches on modeline

[Eli Zaretskii]

> Date: Tue, 06 Oct 2020 10:18:17 +0300
> From: Eli Zaretskii <eliz@gnu.org>
> Cc: 41250@debbugs.gnu.org, rgm@gnu.org, larsi@gnus.org, 
> arthur.miller@live.com,
>  juri@linkov.net
> 
> > Autoloading should probably bind coding-system-for-read to nil.
> 
> Perhaps if it is not already bound to something.  But not
> unconditionally, I think.

Actually, aren't *.elc files always encoded in utf-8-emacs?  If so,
perhaps we should treat them as such in load-with-code-conversion,
bypassing coding-system-for-read entirely?