Fix extra verification
diff --git a/src/knot_thing_main.c b/src/knot_thing_main.c
index b1911f0..c95157e 100644
--- a/src/knot_thing_main.c
+++ b/src/knot_thing_main.c
@@ -235,9 +235,6 @@
 
 	msg->hdr.type = KNOT_MSG_SCHEMA;
 
-	if (!item)
-		return KNOT_INVALID_DEVICE;
-
 	msg->sensor_id = id;
 	msg->values.value_type = item->value_type;
 	msg->values.unit = item->unit;