net/freescale: Clean drivers from static versions

There is no need to set static versions because linux kernel is
released all together with same version applicable to the whole
code base.

Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/ethernet/freescale/gianfar.h

@@ -68,7 +68,6 @@ struct ethtool_rx_list {
 #define RXBUF_ALIGNMENT 64
 
 #define DRV_NAME "gfar-enet"
-extern const char gfar_driver_version[];
 
 /* MAXIMUM NUMBER OF QUEUES SUPPORTED */
 #define MAX_TX_QS	0x8