Remove unused discoverable variables from adapter code
diff --git a/src/adapter.c b/src/adapter.c
index 6e57919..a87237d 100644
--- a/src/adapter.c
+++ b/src/adapter.c
@@ -474,13 +474,10 @@
 {
 	int err;
 	const char *modestr;
-	gboolean discoverable;
 
 	if (adapter->pending_mode != NULL)
 		return -EALREADY;
 
-	discoverable = new_mode == MODE_DISCOVERABLE;
-
 	if (!adapter->up && new_mode != MODE_OFF) {
 		err = adapter_ops->set_powered(adapter->dev_id, TRUE);
 		if (err < 0)
@@ -3400,7 +3397,6 @@
 int btd_adapter_restore_powered(struct btd_adapter *adapter)
 {
 	char mode[14], address[18];
-	gboolean discoverable;
 
 	if (!adapter_ops)
 		return -EINVAL;
@@ -3416,8 +3412,6 @@
 						g_str_equal(mode, "off"))
 		return 0;
 
-	discoverable = get_mode(&adapter->bdaddr, mode) == MODE_DISCOVERABLE;
-
 	return adapter_ops->set_powered(adapter->dev_id, TRUE);
 }