Current the naming of node type is [quite error-prone](https://github.com/scroll-tech/go-ethereum/pull/403#discussion_r1279320247) since we left the deprecated type defination as it is. It would be better to naming the deprecated node type as `xxx_old` or `xxx_deprecated`, and change the current node type without `_new` suffix.
Current the naming of node type is quite error-prone since we left the deprecated type defination as it is.
It would be better to naming the deprecated node type as
xxx_oldorxxx_deprecated, and change the current node type without_newsuffix.