write-only since GetIsMarked was removed in

commit 06ea347b
"loplugin:unusedmethods svtools"

which in was unused since introduced by

commit b755fb8c
Author: Steve Yin <steve_y@apache.org>
Date:   Mon Nov 25 16:15:58 2013 +0000
Integrate branch of IAccessible2

Change-Id: I1342d4c020e53380f4c52fadcbf36ff520efaad4
Reviewed-on: https://gerrit.libreoffice.org/39470Tested-by: Jenkins <ci@libreoffice.org>
Reviewed-by: Noel Grandin <noel.grandin@collabora.co.uk>