Revert 'slinux: use live as installer and rescue also' for slinux-live.
Need to decide whether this target is now needed.
If so, what should now be in it. In the meantime, there was no point
in changing anything about it.

Slinux does not use the browser feature.
There was no need to use +live. Without livecd-install this is
use/live/base.
See https://bugzilla.altlinux.org/49964

See https://www.altlinux.org/Installer/OEM

Audio CDs rarely used nowaday.

I'm not sure that it is works well in Russia nowaday.

Not supported since p10 branch.

After discussion use std-def for now.
This reverts commit f488e3ec.

Make it possible to build SL-install image with live system again:
this can be useful for flash drives with preinstalled SL.

The image is too large, so remove live from it.
Separate live image will be enough.

For newest hardware support.
This reverts commit 3f1b521acaf97293e875cafe47b6977db4947189.

These images also launch in virtual machines.

In preparation to change celluloid -> vlc for all aarch64,
so we are not need to do this for tegra only.
This reverts commit b7354112.

For build universal image for aarch64/armh.

There are just elbrus-def and its CPU-specific peers here,
e.g. elbrus-8c.

plymouth might better be used through the corresponding feature
(it's the single place to know how it performs on various arches),
and some other packages are just missing.

Celluloid segfaults on Jetson Nano, so use vlc there, but keep
celluloid for other aarch64 systems.

Suggested by mike@.

Current un-def kernel (5.10.x) should be std-def at the time
of SL-9.1 release.

Also drop use/build-vm, not needed.

The rpi-un kernel for armh does not exist at the moment.

Can be useful for OEM.

Apparently not needed by most users. And image too big!

Apparently not needed by most users. And image too big!

Pitivi is not fully translated to Russian and pulls python madules
which pulls devel-packages.
Also see https://bugzilla.altlinux.org/show_bug.cgi?id=34495.