Remove error when HTTProutes is empty
Remove error when HTTProutes is empty

Co-authored-by: Jean-Baptiste Doumenjou <c89e30df4190bb6b86a55daeeca2fbbf934933bf@users.noreply.github.com>
dtomcej/traefik,containous/traefik,FriggaHel/traefik,ldez/traefik,containous/traefik,dtomcej/traefik,vdemeester/traefik,dtomcej/traefik,containous/traefik,ldez/traefik,containous/traefik,ldez/traefik,FriggaHel/traefik,vdemeester/traefik,mmatur/traefik,ldez/traefik,vdemeester/traefik,mmatur/traefik,vdemeester/traefik,dtomcej/traefik,FriggaHel/traefik,FriggaHel/traefik,mmatur/traefik,mmatur/traefik