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/sctp/protocol.c b/net/sctp/protocol.c
index f774e65..1ef29c7 100644
--- a/net/sctp/protocol.c
+++ b/net/sctp/protocol.c
@@ -799,7 +799,7 @@
 static int sctp_inet_af_supported(sa_family_t family, struct sctp_sock *sp)
 {
 	/* PF_INET only supports AF_INET addresses. */
-	return (AF_INET == family);
+	return AF_INET == family;
 }
 
 /* Address matching with wildcards allowed. */