Merge branch 'eduardosanz/remove-frontend-u2f-support' into 'master'

Remove U2F support from the frontend

See merge request https://gitlab.com/gitlab-org/gitlab/-/merge_requests/111350



Merged-by: Eduardo Sanz García <esanz-garcia@gitlab.com>
Approved-by: Imre Farkas <ifarkas@gitlab.com>
Approved-by: Mireya Andres <mandres@gitlab.com>
Approved-by: Andrejs Cunskis <acunskis@gitlab.com>
Reviewed-by: Mireya Andres <mandres@gitlab.com>
Reviewed-by: Eduardo Sanz García <esanz-garcia@gitlab.com>