Fix replacing symlink with a directory when obsoleting gnu-efi-compat (rhbz#2273530)
    
    In gnu-efi-compat (an obsoleted package), /usr/include/efi/x86_64 was a
    symlink to a directory, which has been replaced by an actual directory
    in gnu-efi-devel. rpm doesn't handle symlink replacement with a
    directory and reports this as a file conflict:
    
    Error: Transaction test error:
      file /usr/include/efi/x86_64 from install of gnu-efi-devel-1:3.0.18-2.fc39.x86_64 conflicts with file from package gnu-efi-compat-1:3.0.11-10.fc37.x86_64
    
    $ ls -l /usr/include/efi/x86_64
    lrwxrwxrwx 1 root root 4 Jul 21  2022 /usr/include/efi/x86_64 -> x64/
    
    To fix this, we need to remove the symlink before the transaction
    starts. The lua scriptlet that does this is copied from Fedora packaging
    guidelines, https://docs.fedoraproject.org/en-US/packaging-guidelines/Directory_Replacement/
    
    https://bugzilla.redhat.com/show_bug.cgi?id=2273530