[Twisted-Python] (no subject)

As commented by @glyph

Since we've added the buildbot link to trac pages, force-builds.py is basically obsolete. I think we should just scrub all mentions of it, and probably delete it.

I have created a ticket to remove it and clean documentation:

https://github.com/twisted/twisted-dev-tools/issues/5

Is there anyone else still using this tool? Should we keep it and rather than removing it, improve its documentation?

Thanks!