Remove old dead perf dashboard pages and js

The below pages have historically been served on*. This was poorly known,
and even more poorly maintained. I sent out a survey[1] asking which pages
under that path were still used. The ones being removed here are no longer
used, and mostly broken to boot.


Review URL:

git-svn-id: svn:// 0039d316-1c4b-4281-b951-d872f2087c98
16 files changed