chore: remove a fake site

[LitoMore]

This PR reverts all changes from https://github.com/iamkun/dayjs/commit/55e89bfeb323ca53857b5b2b07bfd069c2039acf.

See https://github.com/community/maintainers/discussions/442#discussioncomment-12401989 (you need to join the https://maintainers.github.com private repository if you see a 404 page).

The npm-compare.com is a fake site of npmcompare.com. This user has been terminated now, and the GitHub staff has deleted all npm-compare.com PRs.