message: clean up unserializable flags in pgsql classes
diff: @@ -438,11 +438,7 @@ static const zend_function_entry swoole_postgresql_coro_statement_methods[] =
  void php_swoole_postgresql_coro_minit(int module_number) {
  SW_INIT_CLASS_ENTRY(
  swoole_postgresql_coro, "Swoole\\Coroutine\\PostgreSQL", "Co\\PostgreSQL", swoole_postgresql_coro_methods);
  -#ifdef SW_SET_CLASS_NOT_SERIALIZABLE
  SW_SET_CLASS_NOT_SERIALIZABLE(swoole_postgresql_coro);
  -#else
  - SW_SET_CLASS_SERIALIZABLE(swoole_postgresql_coro, zend_class_serialize_deny, zend_class_unserialize_deny);
  -#endif
  SW_SET_CLASS_CLONEABLE(swoole_postgresql_coro, sw_zend_class_clone_deny);
  SW_SET_CLASS_UNSET_PROPERTY_HANDLER(swoole_postgresql_coro, sw_zend_class_unset_property_deny);
  SW_SET_CLASS_CUSTOM_OBJECT(swoole_postgresql_coro,
  @@ -459,11 +455,7 @@ void php_swoole_postgresql_coro_minit(int module_number) {
  SW_INIT_CLASS_ENTRY(
  swoole_postgresql_coro_statement, "Swoole\\Coroutine\\PostgreSQLStatement", nullptr, swoole_postgresql_coro_statement_methods);
  -#ifdef SW_SET_CLASS_NOT_SERIALIZABLE
  SW_SET_CLASS_NOT_SERIALIZABLE(swoole_postgresql_coro_statement);
  -#else
  - SW_SET_CLASS_SERIALIZABLE(swoole_postgresql_coro_statement, zend_class_serialize_deny, zend_class_unserialize_deny);
  -#endif
  SW_SET_CLASS_CLONEABLE(swoole_postgresql_coro_statement, sw_zend_class_clone_deny);
  SW_SET_CLASS_UNSET_PROPERTY_HANDLER(swoole_postgresql_coro_statement, sw_zend_class_unset_property_deny);
  SW_SET_CLASS_CUSTOM_OBJECT(swoole_postgresql_coro_statement,
  