net: drop the weight argument from netif_napi_add

We tell driver developers to always pass NAPI_POLL_WEIGHT
as the weight to netif_napi_add(). This may be confusing
to newcomers, drop the weight argument, those who really
need to tweak the weight can use netif_napi_add_weight().

Acked-by: Marc Kleine-Budde <mkl@pengutronix.de> # for CAN
Link: https://lore.kernel.org/r/20220927132753.750069-1-kuba@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

drivers/net/xen-netback/interface.c

@@ -723,8 +723,7 @@ int xenvif_connect_data(struct xenvif_queue *queue,
 	init_waitqueue_head(&queue->dealloc_wq);
 	atomic_set(&queue->inflight_packets, 0);
 
-	netif_napi_add(queue->vif->dev, &queue->napi, xenvif_poll,
-			NAPI_POLL_WEIGHT);
+	netif_napi_add(queue->vif->dev, &queue->napi, xenvif_poll);
 
 	queue->stalled = true;