He's talking about the section that contained some sample programs.
It's been gone for much longer than a month. Good riddance, I say. Some of the programs there were written in obscure dialects of 11-bit Shamanic C++ or something. It looked as if just reading the things would put a curse on your first born child.
Really, if you want to look at source code, there's already plenty of sites where source code can be easily browsed.