be2net: no need to query link status

Change in the link status generates an MCC event. This is processed and
netif_carrier_on/off is called accordingly. Don't need to query/store the
link_status state.

Signed-off-by: Sathya Perla <sathya.perla@emulex.com>
Signed-off-by: David S. Miller <davem@davemloft.net>