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