fix(xo-web/backup/health): missing noop function (#5126)
fix(xo-web/backup/health): missing noop function (#5126)

Introduced by committing a suggestion https://github.com/vatesfr/xen-orchestra/pull/5062#discussion_r446135166 
without taking into account that the `noop` function is not already defined.
lmcro/xo-web,lmcro/xo-web,vatesfr/xo-web,vatesfr/xo-web,lmcro/xo-web