unused since...

commit 7affe26a
Author: Maxim Monastirsky <momonasmon@gmail.com>
Date:   Mon Feb 22 18:47:15 2016 +0200

    Kill sfx2 menu support

Change-Id: I902957b8379be7c314f5357750aeba5a2fcc0a00
Reviewed-on: https://gerrit.libreoffice.org/28749Tested-by: Jenkins <ci@libreoffice.org>
Reviewed-by: Caolán McNamara <caolanm@redhat.com>
Tested-by: Caolán McNamara <caolanm@redhat.com>