Tg3's firmware is no longer loaded from tg3_init_one().  Remove the
error path that releases the firmware back to the system.
Signed-off-by: NMatt Carlson <mcarlson@broadcom.com>
Reviewed-by: NMichael Chan <mchan@broadcom.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>