removed some unused code (svx, svtools, unotest)

Change-Id: I1250581d69423030bd0a93a1529458b8d424ce3e
Reviewed-on: https://gerrit.libreoffice.org/7329
Reviewed-by: Caolán McNamara <caolanm@redhat.com>
Tested-by: Caolán McNamara <caolanm@redhat.com>