patch applied (cabal-setup): Fix LICENSE details and remove duplicate copyright file.

[Duncan Coutts]

Wed Sep 26 11:17:09 PDT 2007  Duncan Coutts <duncan at haskell.org>
  * Fix LICENSE details and remove duplicate copyright file.
  The copyright file had been carried over from the Cabal lib but actually
  this program was written by Simon with some minor patches from other people.
  So list just Simon in LICENSE and remove the other copyright file.
  It hardly matters now since there is only 2 real lines of code in this
  program as it's just a program that provides an entry point into code from
  the Cabal lib.

    M ./LICENSE -3 +2
    M ./cabal-setup.cabal -1 +1
    R ./copyright