tty: nozomi: remove unused debugging DUMP()

DUMP()'s only use is commented out. Remove the macro completely along
with this unused use.

Signed-off-by: "Jiri Slaby (SUSE)" <jirislaby@kernel.org>
Link: https://lore.kernel.org/r/20231121092258.9334-13-jirislaby@kernel.org


Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>