Bluetooth: Remove unneeded extra ( ) in valid flags check

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
diff --git a/drivers/bluetooth/hci_ldisc.c b/drivers/bluetooth/hci_ldisc.c
index 48a0c25..1363dc6 100644
--- a/drivers/bluetooth/hci_ldisc.c
+++ b/drivers/bluetooth/hci_ldisc.c
@@ -499,7 +499,7 @@
 				    BIT(HCI_UART_INIT_PENDING) |
 				    BIT(HCI_UART_EXT_CONFIG);
 
-	if ((flags & ~valid_flags))
+	if (flags & ~valid_flags)
 		return -EINVAL;
 
 	hu->hdev_flags = flags;