14 upstream release
    
    Remove the /usr/lib/osbuild/{assemblers, stages}/osbuild dirs.
    NB: Release 13 got skipped since it replaced aforementioned
    directories with symlinks and that would have required a
    %pretrans script. osbuild was adjusted to use a different
    mechanism to locate the osbuild module inside the container
    rendering the symlinks (or 'osbuild' directories) obsolete.