Hide badges in phui-comment-panel

Summary: Ref T3612. Hides badges on the comment panel.

Test Plan: Give myself a badge, leave a comment, see no badge UI.

Reviewers: epriestley

Reviewed By: epriestley

Subscribers: Korvin

Maniphest Tasks: T3612

Differential Revision: https://secure.phabricator.com/D16979