It is no longer needed for the cases where
oly the static methods are called

Change-Id: I869b824c53ef1a8db07f4ca7f0aa9e678e16a7ac
Reviewed-on: https://gerrit.libreoffice.org/58162
Tested-by: Jenkins
Reviewed-by: Noel Grandin <noel.grandin@collabora.co.uk>