Remove unused variables from link_key_request()
diff --git a/plugins/hciops.c b/plugins/hciops.c
index 1b0396f..81e3afb 100644
--- a/plugins/hciops.c
+++ b/plugins/hciops.c
@@ -620,8 +620,6 @@
 static void link_key_request(int index, bdaddr_t *dba)
 {
 	struct dev_info *dev = &devs[index];
-	struct btd_adapter *adapter;
-	struct btd_device *device;
 	struct hci_auth_info_req req;
 	GSList *match;
 	struct link_key_info *key_info;
@@ -633,12 +631,6 @@
 	ba2str(dba, da);
 	DBG("hci%d dba %s", index, da);
 
-	adapter = manager_find_adapter(&dev->bdaddr);
-	if (adapter)
-		device = adapter_find_device(adapter, da);
-	else
-		device = NULL;
-
 	memset(&req, 0, sizeof(req));
 	bacpy(&req.bdaddr, dba);