interwiki.py have two almost simialr options
`-force` removes non-existing or not matching link without asking for each page
`-cleanup` removes only non-existing links
when working with `-whenneeded`, -force removes dead links everywhere since -cleanup only in pages matched by -whenneeded (current language + biggest language, + languages with more than XX changes when `-whenneeded:XX`).
but with combination `-autonomous` mode with -wiktionary:
1) `-wiktionary -cleanup -autonomous` removes only dead links
2) `-wiktionary -force -autonomous` removes dead and non-matching links (en:Foo vs. es:Bar, en:A vs. de:a)
3) `-wiktionary -force` the same result as 2)
4) `-wiktionary -cleanup` the same result as 2), but should be the same as 1)
https://en.wiktionary.org/w/index.php?title=A&diff=prev&oldid=34532053
https://en.wiktionary.org/w/index.php?title=@&diff=prev&oldid=34532059
https://en.wiktionary.org/w/index.php?title=ABM&diff=prev&oldid=34532043