eth: gfar: remove a copy of the NAPI_POLL_WEIGHT define

Defining local versions of NAPI_POLL_WEIGHT with the same
values in the drivers just makes refactoring harder.
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/ethernet/freescale/gianfar.c

@@ -3232,7 +3232,7 @@ static int gfar_probe(struct platform_device *ofdev)
 	/* Register for napi ...We are registering NAPI for each grp */
 	for (i = 0; i < priv->num_grps; i++) {
 		netif_napi_add(dev, &priv->gfargrp[i].napi_rx,
-			       gfar_poll_rx_sq, GFAR_DEV_WEIGHT);
+			       gfar_poll_rx_sq, NAPI_POLL_WEIGHT);
 		netif_tx_napi_add(dev, &priv->gfargrp[i].napi_tx,
 				  gfar_poll_tx_sq, 2);
 	}

drivers/net/ethernet/freescale/gianfar.h

@@ -52,9 +52,6 @@ struct ethtool_rx_list {
 	unsigned int count;
 };
 
-/* The maximum number of packets to be handled in one call of gfar_poll */
-#define GFAR_DEV_WEIGHT 64
-
 /* Length for FCB */
 #define GMAC_FCB_LEN 8