net: replace uses of __constant_{endian}

Base versions handle constant folding now.

Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/myri_sbus.c b/drivers/net/myri_sbus.c
index 899ed06..88b5288 100644
--- a/drivers/net/myri_sbus.c
+++ b/drivers/net/myri_sbus.c
@@ -748,7 +748,7 @@
 	switch (eth->h_proto)
 	{
 #ifdef CONFIG_INET
-	case __constant_htons(ETH_P_IP):
+	case cpu_to_be16(ETH_P_IP):
  		return arp_find(eth->h_dest, skb);
 #endif