Simplify property check in php_libxml_node_free_resource()

Author: nielsdos

ext/libxml/libxml.c

@@ -1406,18 +1406,8 @@ PHP_LIBXML_API void php_libxml_node_free_resource(xmlNodePtr node)
 		default:
 			if (node->parent == NULL || node->type == XML_NAMESPACE_DECL) {
 				php_libxml_node_free_list((xmlNodePtr) node->children);
-				switch (node->type) {
-					/* Skip property freeing for the following types */
-					case XML_ATTRIBUTE_DECL:
-					case XML_DTD_NODE:
-					case XML_DOCUMENT_TYPE_NODE:
-					case XML_ENTITY_DECL:
-					case XML_ATTRIBUTE_NODE:
-					case XML_NAMESPACE_DECL:
-					case XML_TEXT_NODE:
-						break;
-					default:
-						php_libxml_node_free_list((xmlNodePtr) node->properties);
+				if (node->type == XML_ELEMENT_NODE) {
+					php_libxml_node_free_list((xmlNodePtr) node->properties);
 				}
 				php_libxml_unregister_node(node);
 				php_libxml_node_free(node);