net: au1000_eth: remove unused global variable.

The driver global au_macs[] is unused in the entire kernel tree,
so remove it.
Signed-off-by: Manuel Lauss <manuel.lauss@googlemail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/au1000_eth.c

@@ -106,8 +106,6 @@ MODULE_VERSION(DRV_VERSION);
  * complete immediately.
  */
 
-struct au1000_private *au_macs[NUM_ETH_INTERFACES];
-
 /*
  * board-specific configurations
  *