Fix unit test view detail fatal

Summary: Fixes T10674.

Test Plan: {F1190743}

Reviewers: chad

Reviewed By: chad

Maniphest Tasks: T10674

Differential Revision: https://secure.phabricator.com/D15525

src/applications/harbormaster/controller/HarbormasterUnitMessageViewController.php

@@ -106,9 +106,7 @@ final class HarbormasterUnitMessageViewController
       PHUIPropertyListView::ICON_TESTPLAN);
     $view->addTextContent($details);
 
-    return id(new PHUIObjectBoxView())
+    return $view;
-      ->setHeaderText(pht('PROPERTIES'))
-      ->appendChild($view);
   }
 
   private function buildCurtainView(