Removing deprecated method calls

Summary: Removed call to the deprecated buildStandardPageResponse method from XHProfProfileController

Test Plan: Install, configure, and use XHProf. I'll need some guidance with this

Reviewers: epriestley, #blessed_reviewers

Reviewed By: epriestley, #blessed_reviewers

Subscribers: Korvin, epriestley

Differential Revision: https://secure.phabricator.com/D16432