Remove calendar panel in profile and make calendar box header a link to user's calendar

Summary: Ref T9606, Clicking on the calendar preview header in user's profile page should link to user's full month calendar

Test Plan: Open user profile, scroll to calendar preview, click on Calendar box header. This should open the month calendar for the user (not viewer)

Reviewers: epriestley, Blessed Reviewers

Reviewed By: epriestley, Blessed Reviewers

Subscribers: Korvin

Maniphest Tasks: T9606

Differential Revision: https://secure.phabricator.com/D15967