gianfar: Remove unused header

Now that the driver is exclusively an of_platform driver we no longer
use the structs and #defines in fsl_devices.h

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/gianfar.h

@@ -45,7 +45,6 @@
 #include <linux/crc32.h>
 #include <linux/workqueue.h>
 #include <linux/ethtool.h>
-#include <linux/fsl_devices.h>
 
 /* The maximum number of packets to be handled in one call of gfar_poll */
 #define GFAR_DEV_WEIGHT 64