bug#56641: Deprecate `lsh`

[Eli Zaretskii]

> From: Po Lu <luangruo@yahoo.com>
> Cc: Stefan Kangas <stefankangas@gmail.com>,  mattiase@acm.org,
>   56641@debbugs.gnu.org
> Date: Wed, 20 Jul 2022 09:25:49 +0800
> 
> Eli Zaretskii <eliz@gnu.org> writes:
> 
> > I'm okay with introducing some new special attribute for such cases,
> > i.e. when the use of a function or a variable is discouraged for
> > whatever reasons, so that the byte-compiler could warn about that.
> > Just let's not called them "obsolete", because they aren't.
> 
> Having the byte compiler warn when someone uses lsh would be very
> annoying.

If it's rare enough (as it should be), I don't see the annoyance.  Am
I missing something?