and put back original SvTreeListBox a11y factory use

Change-Id: I4ad8ce29d8fed6ec5d44e9a1d641919a89226b79
Reviewed-on: https://gerrit.libreoffice.org/63501
Tested-by: Jenkins
Reviewed-by: Caolán McNamara <caolanm@redhat.com>
Tested-by: Caolán McNamara <caolanm@redhat.com>