Delete deprecated CPU profiler code that supports filtering by security token

The methods that allow to filter CPU profile by security token were introduced to support console.profiles in WebKit. Now that console.profiles is removed and corresponding V8 API methods have been deprecated in 3.19 branch(https://code.google.com/p/v8/source/browse/branches/3.19/include/v8-profiler.h) it is safe to remove all that code.

BUG=None
R=jkummerow@chromium.org, loislo@chromium.org

Review URL: https://codereview.chromium.org/18709003

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@15528 ce2b1a6d-e550-0410-aec6-3dcde31c8c00