Delete webkit-perf.appspot.com code from WebKit repository
https://bugs.webkit.org/show_bug.cgi?id=107390

Reviewed by Adam Barth.

Delete webkit-perf.appspot.com code from WebKit repository since I maintain
and push the code via https://github.com/rniwa/webkit-perf now.

* Websites/webkit-perf.appspot.com: Removed.


git-svn-id: http://svn.webkit.org/repository/webkit/trunk@140266 268f45cc-cd09-0410-ab3c-d52691b4dbfc