The ndiff package provided by Nmap relies on python2; moreover, there
have been pending pull requests to move ndiff to python3 for over two
years with very little engagement by the maintainers
(https://github.com/nmap/nmap/pull/1807).
Remove the option to select ndiff altogether, it is replaced by
python-pyndiff, which provides the same functionality (and more) as the
ndiff provided by nmap, and is compatible with python3.
Signed-off-by: Adam Duskett <aduskett@gmail.com>
Signed-off-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>