And disable unit tests otherwise

Change-Id: I32e1d8d2f8b0013d9cb43b78a55d23a1a29a8e8d
Reviewed-on: https://gerrit.libreoffice.org/46057Tested-by: Jenkins <ci@libreoffice.org>
Reviewed-by: Thorsten Behrens <Thorsten.Behrens@CIB.de>