ed2847c backend: allow devel instance to remove access files

1 file Authored by frostyx a year ago, Committed by praiskup a year ago,
    backend: allow devel instance to remove access files
    
    There is a small danger that devel instance will remove some
    production files because of some bug but we agreed that it is a better
    solution than letting production instance cleaning up devel access
    files.
    
    Merges: #2348