since

commit 7abd3699
Author: Noel Grandin <noel.grandin@collabora.co.uk>
Date:   Thu Nov 3 14:00:28 2016 +0200

    loplugin:unusedmethods

    Change-Id: Ie1f840c3ec9a2d5888f95cf05e531a8a9464bf2e
    Reviewed-on: https://gerrit.libreoffice.org/30524Reviewed-by: Noel Grandin <noel.grandin@collabora.co.uk>
Tested-by: Noel Grandin <noel.grandin@collabora.co.uk>

Change-Id: I4cb8167698d460df6a56c5b3b7d01841e3f1a69a