Remove AphrontPanelView from Diffusion

Summary: Removes remaining AphrontPanelView calls in Diffusion for UI Consistency.

Test Plan: Tested each page except lint details, which I couldn't quite find a path to. Everything looks right.

Reviewers: epriestley, btrahan

Reviewed By: btrahan

Subscribers: Korvin, epriestley

Maniphest Tasks: T7427

Differential Revision: https://secure.phabricator.com/D12001

src/applications/diffusion/controller/DiffusionSymbolController.php

@@ -137,14 +137,12 @@ final class DiffusionSymbolController extends DiffusionController {
     $table->setNoDataString(
       pht('No matching symbol could be found in any indexed project.'));
 
-    $panel = new AphrontPanelView();
-    $panel->setHeader(pht('Similar Symbols'));
+    $panel = new PHUIObjectBoxView();
+    $panel->setHeaderText(pht('Similar Symbols'));
     $panel->appendChild($table);
 
     return $this->buildApplicationPage(
-      array(
-        $panel,
-      ),
+      $panel,
       array(
         'title' => pht('Find Symbol'),
       ));