Patch to delete the iopart, kluwer and svjog layouts and edit Makefile.am as the relevant cls files have not been available for several years

[Pavel Sanda]

On Wed, Jan 04, 2023 at 12:12:39PM +0000, John Robert Hudson wrote:

> From 673a7b1786ecaea775d10ad9751a8630ab844b10 Mon Sep 17 00:00:00 2001
> From: John R Hudson <j.r.hudson at virginmedia.com>
> Date: Wed, 4 Jan 2023 12:08:23 +0000
> Subject: [PATCH] Delete iopart, kluwer and svjog layouts as the relevant cls
>  files have not been available for several years and edit Makefile.am to
>  reflect this change

Thanks John.

I am not going to apply this patch, because removing the layout might break
the old documents. In the long term we might want some attic or flag so we
don't offer these layouts for a new documents.

But this needs more work to be done. For now I will at least put this list into
layouts directory so we do not lose your valueable exploration of deprecated
.cls packages. 

Pavel