Remove ability to edit Badge forms

Summary: Ref T12270. Remove the EditEngine form configuration option on Badges.

Test Plan: View edit page, don't see configure form.

Reviewers: epriestley

Reviewed By: epriestley

Subscribers: Korvin

Maniphest Tasks: T12270

Differential Revision: https://secure.phabricator.com/D17392

src/applications/badges/editor/PhabricatorBadgesEditEngine.php

@@ -21,6 +21,10 @@ final class PhabricatorBadgesEditEngine
     return pht('Configure creation and editing forms in Badges.');
   }
 
+  public function isEngineConfigurable() {
+    return false;
+  }
+
   protected function newEditableObject() {
     return PhabricatorBadgesBadge::initializeNewBadge($this->getViewer());
   }