Bluetooth: hci_bcm: Remove DMI quirk for the MINIX Z83-4

As Interrupt resource specified IRQs are now assumed to be always
active-low the DMI quirk for the MINIX Z83-4 is no longer required.

Signed-off-by: Ian W MORRISON <ianwmorrison@gmail.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>