Replace Autofill authenticators with those in lib-auth

[jonalmeida]

When #12289 lands, we should use that component as dependency for feature-autofill so that we can reduce the duplication use the appropriate component.

We can remove the code in the mozilla.components.feature.autofill.authenticator package and with lib-auth replace that (maybe keeping the interface as well if it's appropriate).

┆Issue is synchronized with this Jira Task

[jonalmeida]

Moved to bugzilla: https://bugzilla.mozilla.org/show_bug.cgi?id=1794235

Change performed by the Move to Bugzilla add-on.