diff --git a/library/smarty/libs/plugins/shared.mb_str_replace.php b/library/smarty/libs/plugins/shared.mb_str_replace.php
deleted file mode 100644
--- a/library/smarty/libs/plugins/shared.mb_str_replace.php
+++ /dev/null
@@ -1,54 +0,0 @@
-<?php
-/**
- * Smarty shared plugin
- *
- * @package    Smarty
- * @subpackage PluginsShared
- */
-if (!function_exists('smarty_mb_str_replace')) {
-
-    /**
-     * Multibyte string replace
-     *
-     * @param  string $search the string to be searched
-     * @param  string $replace the replacement string
-     * @param  string $subject the source string
-     * @param  int &$count number of matches found
-     *
-     * @return string replaced string
-     * @author Rodney Rehm
-     */
-    function smarty_mb_str_replace($search, $replace, $subject, &$count = 0) {
-        if (!is_array($search) && is_array($replace)) {
-            return false;
-        }
-        if (is_array($subject)) {
-            // call mb_replace for each single string in $subject
-            foreach ($subject as &$string) {
-                $string = &smarty_mb_str_replace($search, $replace, $string, $c);
-                $count += $c;
-            }
-        } elseif (is_array($search)) {
-            if (!is_array($replace)) {
-                foreach ($search as &$string) {
-                    $subject = smarty_mb_str_replace($string, $replace, $subject, $c);
-                    $count += $c;
-                }
-            } else {
-                $n = max(count($search), count($replace));
-                while ($n--) {
-                    $subject = smarty_mb_str_replace(current($search), current($replace), $subject, $c);
-                    $count += $c;
-                    next($search);
-                    next($replace);
-                }
-            }
-        } else {
-            $parts = mb_split(preg_quote($search), $subject);
-            $count = count($parts) - 1;
-            $subject = implode($replace, $parts);
-        }
-
-        return $subject;
-    }
-}