Remove object name from header

Summary: It's displayed right above it in the breadcrumbs including a link.

Test Plan: Looked at the pages.

Reviewers: chad, epriestley

Reviewed By: epriestley

CC: aran, epriestley, s.o.butler

Differential Revision: https://secure.phabricator.com/D5045

src/applications/paste/controller/PhabricatorPasteViewController.php

@@ -74,7 +74,6 @@ final class PhabricatorPasteViewController extends PhabricatorPasteController {
 
   private function buildHeaderView(PhabricatorPaste $paste) {
     return id(new PhabricatorHeaderView())
-      ->setObjectName('P'.$paste->getID())
       ->setHeader($paste->getTitle());
   }