Revert "Clean up more Quicksand"

Summary: This reverts commit 5eb4bc6ca9.

Test Plan: Reload homepage, no scrollbars

Reviewers: epriestley

Reviewed By: epriestley

Subscribers: Korvin

Differential Revision: https://secure.phabricator.com/D16645

src/applications/config/controller/PhabricatorConfigDatabaseIssueController.php

@@ -165,7 +165,7 @@ final class PhabricatorConfigDatabaseIssueController
       ->setCrumbs($crumbs)
       ->setNavigation($nav)
       ->appendChild($content)
-      ->addFrameClass('white-background');
+      ->addClass('white-background');
   }
 
 }