It looks like someone scraped the page, translated it, and posted their own copy. Since SE's Creative Commons licenced, and on the public Internet, and it does look like they've attributed well...
There's not much SE can do except ask them nicely, and if it's following the licencing criteria, there's not much reason to - especially since they did what was asked of them - linking to both the question and the user. .
Since it's not an SE owned page, well, you can't really delete it yourself.
If you really need it gone because it's not supposed to be out in the wild, well, it's tough. If you're just trying to delete it because you deleted it on SO, it's a copy and it's got nothing to do with the SO copy.