rewrite or remove internals chap-regress.html

["Jeremy C. Reed" <reed%reedmedia.net@localhost>]

Can someone please rewrite or remove the internal's book's Chapter 6. 
Regression testing ?

http://www.netbsd.org/docs/internals/en/chap-regress.html

This was brought up on the internal www list.

NetBSD does have a consistent regression testing framework. Many 
components use ATF. Even a few developers automate test runs and 
generate reports.