Bluetooth: Remove unneeded parenthesis around MSG_OOB

There are two checks that are still using (MSG_OOB) instead of just
MSG_OOB and so lets just fix them.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
diff --git a/net/bluetooth/af_bluetooth.c b/net/bluetooth/af_bluetooth.c
index c557179..a3bffd1e 100644
--- a/net/bluetooth/af_bluetooth.c
+++ b/net/bluetooth/af_bluetooth.c
@@ -221,7 +221,7 @@
 
 	BT_DBG("sock %p sk %p len %zu", sock, sk, len);
 
-	if (flags & (MSG_OOB))
+	if (flags & MSG_OOB)
 		return -EOPNOTSUPP;
 
 	skb = skb_recv_datagram(sk, flags, noblock, &err);