net: return operator cleanup

Change "return (EXPR);" to "return EXPR;"

return is not a function, parentheses are not required.

Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/econet/af_econet.c b/net/econet/af_econet.c
index baa98fb..f8c1ae4 100644
--- a/net/econet/af_econet.c
+++ b/net/econet/af_econet.c
@@ -392,7 +392,7 @@
 		dev_queue_xmit(skb);
 		dev_put(dev);
 		mutex_unlock(&econet_mutex);
-		return(len);
+		return len;
 
 	out_free:
 		kfree_skb(skb);
@@ -637,7 +637,7 @@
 	eo->num = protocol;
 
 	econet_insert_socket(&econet_sklist, sk);
-	return(0);
+	return 0;
 out:
 	return err;
 }