Bluetooth: Remove OOB data if device was discovered in band

OOB authentication mechanism should be used only if pairing process
has been activated by previous OOB information exchange (Core Spec
4.0 , vol. 1, Part A, 5.1.4.3). Stored OOB data for specific device
should be removed if that device was discovered in band later on.

Signed-off-by: Szymon Janc <szymon.janc@tieto.com>
Acked-by: Johan Hedberg <johan.hedberg@intel.com>
Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
diff --git a/net/bluetooth/hci_core.c b/net/bluetooth/hci_core.c
index e3a49db..81f4bac 100644
--- a/net/bluetooth/hci_core.c
+++ b/net/bluetooth/hci_core.c
@@ -434,6 +434,8 @@
 
 	BT_DBG("cache %p, %pMR", cache, &data->bdaddr);
 
+	hci_remove_remote_oob_data(hdev, &data->bdaddr);
+
 	if (ssp)
 		*ssp = data->ssp_mode;