Revert "Fix dom class can't be inherited by the internal class"

This reverts commit 705f60e.

Author: krakjoe

ext/dom/php_dom.c

@@ -1075,7 +1075,7 @@ static dom_object* dom_objects_set_class(zend_class_entry *class_type, zend_bool
 	dom_object *intern = ecalloc(1, sizeof(dom_object) + zend_object_properties_size(class_type));
 
 	zend_class_entry *base_class = class_type;
-	while ((base_class->type != ZEND_INTERNAL_CLASS || base_class->info.internal.module != &dom_module_entry) && base_class->parent != NULL) {
+	while (base_class->type != ZEND_INTERNAL_CLASS && base_class->parent != NULL) {
 		base_class = base_class->parent;
 	}