we can not use -delete as we have to limit the depth so we do not remove files from the current composes
    
    the rm -rf is needed to clean up the directories -delete gives us
    find: cannot delete '/mnt/koji/compose/rawhide/Fedora-Rawhide-20160512.n.0/compose': Directory not empty
    find: cannot delete '/mnt/koji/compose/rawhide/Fedora-Rawhide-20160512.n.0/logs': Directory not empty
    
    Revert "Use -delete instead of -exec rm it's quicker because it doesn't fork for every file"
    
    This reverts commit e45177a4c6a0dc6278dce858095422c67b9fb699.
    
    Signed-off-by: Dennis Gilmore <dennis@ausil.us>