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/include/net/ip.h b/include/net/ip.h
index 7691aca..dbee3fe 100644
--- a/include/net/ip.h
+++ b/include/net/ip.h
@@ -238,9 +238,9 @@
 static inline
 int ip_dont_fragment(struct sock *sk, struct dst_entry *dst)
 {
-	return (inet_sk(sk)->pmtudisc == IP_PMTUDISC_DO ||
+	return  inet_sk(sk)->pmtudisc == IP_PMTUDISC_DO ||
 		(inet_sk(sk)->pmtudisc == IP_PMTUDISC_WANT &&
-		 !(dst_metric_locked(dst, RTAX_MTU))));
+		 !(dst_metric_locked(dst, RTAX_MTU)));
 }
 
 extern void __ip_select_ident(struct iphdr *iph, struct dst_entry *dst, int more);