since we only used it for the pseudo-slot stuff, which is now gone

Change-Id: I72146090e7741d5b71d581fa0b5c6d43c154445a
Reviewed-on: https://gerrit.libreoffice.org/35759Reviewed-by: Noel Grandin <noel.grandin@collabora.co.uk>
Tested-by: Noel Grandin <noel.grandin@collabora.co.uk>