team: Simplify return path of team_newlink

The variable "err" is not necessary.
Return register_netdevice() directly.
Signed-off-by: NToshiaki Makita <makita.toshiaki@lab.ntt.co.jp>
Acked-by: NJiri Pirko <jiri@resnulli.us>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

drivers/net/team/team.c

@@ -2045,16 +2045,10 @@ static void team_setup(struct net_device *dev)
 static int team_newlink(struct net *src_net, struct net_device *dev,
 			struct nlattr *tb[], struct nlattr *data[])
 {
-	int err;
-
 	if (tb[IFLA_ADDRESS] == NULL)
 		eth_hw_addr_random(dev);
 
-	err = register_netdevice(dev);
-	if (err)
-		return err;
-
-	return 0;
+	return register_netdevice(dev);
 }
 
 static int team_validate(struct nlattr *tb[], struct nlattr *data[])