8 – How do I remove unwanted hreflang links from the page?

I have a content page in English with translations in Japanese and Chinese. Even when I did not publish the translation nodes, the source code of the page will show the hreflang attributes to the languages ​​not published in the header.

This seems to be generated automatically. And when I run a test for SEO, these language links throw a 404 error because they are not published. How do I remove unpublished links from the hreflang? (And should be added automatically when you publish the translations)