Remove conditionals for skipping/ignoring tests
    
    The conditionals for completely skipping testing, or ignoring all test
    failures are much too big a hammer. They are resulting in seriously
    broken QEMU binaries making their way into the rawhide repos.
    
    When failures happen the smallest possible number of individual tests
    need to be disabled/skipped, but *only* if failure is confined to the
    test suite. If there are problems affecting functionality in QEMU
    itself, the build should not be forced through, instead QEMU must be
    fixed before a build is made.
    
    Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>