Remove from option-dialog the CurrentPage-option (fdo#71601)

Change-Id: I28a75468b1f43e0219fa0f03fe89601a77d3cd4d
Reviewed-on: https://gerrit.libreoffice.org/7842
Reviewed-by: Caolán McNamara <caolanm@redhat.com>
Tested-by: Caolán McNamara <caolanm@redhat.com>