diff --git a/library/smarty/libs/plugins/modifier.date_format.php b/library/smarty/libs/plugins/modifier.date_format.php
deleted file mode 100644
--- a/library/smarty/libs/plugins/modifier.date_format.php
+++ /dev/null
@@ -1,64 +0,0 @@
-<?php
-/**
- * Smarty plugin
- *
- * @package    Smarty
- * @subpackage PluginsModifier
- */
-
-/**
- * Smarty date_format modifier plugin
- * Type:     modifier<br>
- * Name:     date_format<br>
- * Purpose:  format datestamps via strftime<br>
- * Input:<br>
- *          - string: input date string
- *          - format: strftime format for output
- *          - default_date: default date if $string is empty
- *
- * @link   http://www.smarty.net/manual/en/language.modifier.date.format.php date_format (Smarty online manual)
- * @author Monte Ohrt <monte at ohrt dot com>
- *
- * @param string $string input date string
- * @param string $format strftime format for output
- * @param string $default_date default date if $string is empty
- * @param string $formatter either 'strftime' or 'auto'
- *
- * @return string |void
- * @uses   smarty_make_timestamp()
- */
-function smarty_modifier_date_format($string, $format = null, $default_date = '', $formatter = 'auto') {
-    if ($format === null) {
-        $format = Smarty::$_DATE_FORMAT;
-    }
-    /**
-     * require_once the {@link shared.make_timestamp.php} plugin
-     */
-    require_once(SMARTY_PLUGINS_DIR . 'shared.make_timestamp.php');
-    if ($string != '' && $string != '0000-00-00' && $string != '0000-00-00 00:00:00') {
-        $timestamp = smarty_make_timestamp($string);
-    } elseif ($default_date != '') {
-        $timestamp = smarty_make_timestamp($default_date);
-    } else {
-        return;
-    }
-    if ($formatter == 'strftime' || ($formatter == 'auto' && strpos($format, '%') !== false)) {
-        if (DS == '\\') {
-            $_win_from = array('%D', '%h', '%n', '%r', '%R', '%t', '%T');
-            $_win_to = array('%m/%d/%y', '%b', "\n", '%I:%M:%S %p', '%H:%M', "\t", '%H:%M:%S');
-            if (strpos($format, '%e') !== false) {
-                $_win_from[] = '%e';
-                $_win_to[] = sprintf('%\' 2d', date('j', $timestamp));
-            }
-            if (strpos($format, '%l') !== false) {
-                $_win_from[] = '%l';
-                $_win_to[] = sprintf('%\' 2d', date('h', $timestamp));
-            }
-            $format = str_replace($_win_from, $_win_to, $format);
-        }
-
-        return strftime($format, $timestamp);
-    } else {
-        return date($format, $timestamp);
-    }
-}