Deletion of Tonbokiri

Comment: While I can't read it, the :ja:蜻蛉切|Japanese version of this article is longer and has a source, which suggests to me that it's verifiable in principle. Otherwise, it seems a decent stub and |we can afford to wait for someone with the language skills to add citations
Stance: keep
Cited policy: Wikipedia:There is no deadline (WP:DEADLINE)