found by my new aggressive unused var plugin. these are unused return values from function calls Change-Id: I3359c583f535828f192cb833762dfedc008d82f0 Reviewed-on: https://gerrit.libreoffice.org/c/core/+/87439 Tested-by: Jenkins Reviewed-by: Noel Grandin <noel.grandin@collabora.co.uk>