Revert "package/linux-firmware: add missing symlinks"

This reverts commit 23d12793, which was
intended for the next branch, not master.

Reported-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
Signed-off-by: Yann E. MORIN <yann.morin.1998@free.fr>
Cc: James Hilliard <james.hilliard1@gmail.com>
Cc: Antoine Tenart <antoine.tenart@bootlin.com>
Cc: Baruch Siach <baruch@tkos.co.il>