removal proposal for mbone/mdp

[Greg Troxel <gdt%lexort.com@localhost>]

mdp is no longer maintained upstream, to the point that the homepage and
download dir are 404.

I asked upstream people, and basically the answer is:

  mdp is of historical interest only

  one should instead look at NORM, at
  https://github.com/USNavalResearchLaboratory/norm

I believe there are zero users of mdp.


Absent objections, I'll remove it sometime after Feb 16 at 1200Z.