Remove unused node type in `codegen()`
@@ -2385,10 +2385,6 @@ codegen(codegen_scope *s, node *tree, int val)
}
break;
- case NODE_DEFINED:
- codegen(s, tree, val);
- break;
-
case NODE_BACK_REF:
if (val) {
char buf[] = {'$', nchar(tree)};
