Remove some remnants of ChangeLog and vcsversion.py generation
Remove some remnants of ChangeLog and vcsversion.py generation

Since moving to bzr, we no longer generate ChangeLog and vcsversion.py
and since commit deb31cb55 we no longer even have the bzr specific code
for generating them. So, let's just remove any references to them.

Change-Id: I4f96b9be48e289f9129ae8e3ad4cbc1b22db07d2

n0ano/ganttclient