schema compile CHANGE check for non-presence of default value in empty type
diff --git a/src/tree_schema_free.c b/src/tree_schema_free.c
index 24ad2db..3fc0065 100644
--- a/src/tree_schema_free.c
+++ b/src/tree_schema_free.c
@@ -583,7 +583,7 @@
     case LY_TYPE_INST:
     case LY_TYPE_BOOL:
     case LY_TYPE_EMPTY:
-    case LY_TYPE_UNKNOWN: /* just to complete switch */
+    case LY_TYPE_UNKNOWN:
         /* nothing to do */
         break;
     }