[python-win32] py3k branch on pywin32 hg repo

[Tim Golden]

I note that the pywin32 hg repo has a py3k branch. AFAICT, this
is an artefact leftover from CVS days and not a current focus
of work?

If I'm right, it might be worth marking it as closed
(hg commit --close-branch) to avoid confusion.

TJG