Remove unnecessary global declaration

Change-Id: I349d2dde48e14cc59a51729cfefe4f360a70a858
Signed-off-by: Richard Mansfield <richard.mansfield@catalyst.net.nz>

htdocs/view/access.php

@@ -30,8 +30,6 @@ define('SECTION_PLUGINTYPE', 'core');
 define('SECTION_PLUGINNAME', 'view');
 define('SECTION_PAGE', 'editaccess');
 
-global $CFG;
-
 require(dirname(dirname(__FILE__)) . '/init.php');
 require_once('pieforms/pieform.php');
 require_once('pieforms/pieform/elements/calendar.php');