Hide messages of little significance by default.
See: https://bugzilla.altlinux.org/37201

1. Regular/starter kit users are experienced, they do not need this program
2. Many DEs have their own tool for this
3. Request-by users (ALT bug 47412)

Distributions have been released without this option for a couple
of years now and no one is complaining.

Suggested-by: Anton Midyukov <antohami@altlinux.org>

It looks like this package livecd-firefox is very outdated.

Removed from Sisyphus:
[#329944] DONE (try 2) del=otter-browser

This image has not been builded for a long time. It is impossible
to install from it. I don’t need it and it’s not a regular build thing.

Suggested-by: Anton Midyukov <antohami@altlinux.org>

in ISO meta info and in grub menu of installer

Weird  it was added...
See: 3a0f91e2

This default has been in Alt for several years now.

Not sure if they will work in config 00-keyboard.conf
It looks like no one has ever used them in mimage-profiles.
Therefore, their loss should not be noticed.

We do the same as in the alterator-xkb.
This change allows the system keyboard layout to be enabled in the
display managers and wayland (when is xkb used).

In the future, on aarch64, symlinks on dtb in vendor directories
will be removed.

plymouth breaks console fonts.

c10f1, c10f2...