Remove java-devel from test BuildRequires
    
    Java is being removed from some architecture repositories (specifically
    i686), leading to build failure if the builder runs on this kind of
    machine.
    Since there is a risk that modifying the "ExcludeArch" or "RequiredArch"
    field would lead to this package to be removed from the corresponding
    repo, it is considered a better solution to simply remove the
    problematic requirement.