Validation is done with Microsoft Office Binary File Format Validator if it
is enabled. However binary files are failing validation, so validation is
disbled in corresponding tests.

Change-Id: I9f6ff5c3dd9e3e3c0bb37ce895e60e38a0b43e9a
Reviewed-on: https://gerrit.libreoffice.org/26510Tested-by: Jenkins <ci@libreoffice.org>
Reviewed-by: Thorsten Behrens <Thorsten.Behrens@CIB.de>