purge of lessdisks

[Vagrant Cascadian <vagrant@freegeek.org>]

so, looking at the debian-edu* packages, it seems there are a fair
number of scripts, configurations and documentation referencing
lessdisks.

lessdisks was a thin-client system i had developed much like what the current
ltsp packages in debian are today- building a thin client environment using
debian packages. ltsp 4.x and older was basically it's own linux distribution.

lessdisks suffered from a lack of development, and now is missing quite a few
features that LTSP has. eventually, lessdisks was removed from testing
2006-04-11, and removed from unstable 2007-10-28.

so i'm thinking we can remove most references to lessdisks in the debian-edu
packages.

i'd also like to welcome and encourage people who used lessdisks to report bugs
on ltsp if there are features you miss from lessdisks.

live well,
  vagrant