the relevant usage sites already call GetRest() before comparing

Change-Id: I5e8ce3a3c2b6972810aa527356f6350c61b8bd63
Reviewed-on: https://gerrit.libreoffice.org/41470Tested-by: Jenkins <ci@libreoffice.org>
Reviewed-by: Noel Grandin <noel.grandin@collabora.co.uk>