Bluetooth: Remove unused LTK authentication defines

These defines were probably put in to track authenticated vs
unauthenticated LTKs, however since the LTK struct has a separate
boolean authenticated member these were never used.
Signed-off-by: NJohan Hedberg <johan.hedberg@intel.com>
Signed-off-by: NMarcel Holtmann <marcel@holtmann.org>

include/net/bluetooth/hci.h

@@ -348,10 +348,6 @@ enum {
 #define HCI_LK_UNAUTH_COMBINATION_P256	0x07
 #define HCI_LK_AUTH_COMBINATION_P256	0x08
 
-/* Long Term Key types */
-#define HCI_LTK_UNAUTH			0x00
-#define HCI_LTK_AUTH			0x01
-
 /* ---- HCI Error Codes ---- */
 #define HCI_ERROR_AUTH_FAILURE		0x05
 #define HCI_ERROR_MEMORY_EXCEEDED	0x07