Removes tests based on hosting ASP.NET on a project-less web site.

Hosting ASP.NET has always been a fragile effort. And project-less web sites are born with constant issues. It's easier to just remove it. OWIN and Katana are likely to make this code obsolete anyway.
Removes InfoCardRelyingParty web site sample.

Again, web sites without projects just cause problems. And InfoCard doesn't even work in Windows 8. It's a dying technology (tragic, but true).