Remove commented-out code that I doubt will return

drupalorg_drupalcon.module

 <?php
 
-/**
- * The session evaluations view is filtered so the current user sees
- * evaluations for their sessions. This function allows them to access them in
- * this special case.
-function drupalorg_drupalcon_node_grants($account, $op) {
-  static $admin_role;
-  if (in_array($_GET['q'], array('session-evaluations', 'session-evaluations/csv'))) {
-    if (is_null($admin_role)) {
-      $admin_role = user_role_load_by_name('admin');
-    }
-    return array('content_access_rid' => array($admin_role->rid));
-  }
-}
- */
-
 /**
  * Implements hook_menu().
  */