diff --git a/library/smarty/libs/plugins/shared.mb_unicode.php b/library/smarty/libs/plugins/shared.mb_unicode.php
deleted file mode 100644
--- a/library/smarty/libs/plugins/shared.mb_unicode.php
+++ /dev/null
@@ -1,52 +0,0 @@
-<?php
-/**
- * Smarty shared plugin
- *
- * @package    Smarty
- * @subpackage PluginsShared
- */
-
-/**
- * convert characters to their decimal unicode equivalents
- *
- * @link   http://www.ibm.com/developerworks/library/os-php-unicode/index.html#listing3 for inspiration
- *
- * @param string $string characters to calculate unicode of
- * @param string $encoding encoding of $string, if null mb_internal_encoding() is used
- *
- * @return array sequence of unicodes
- * @author Rodney Rehm
- */
-function smarty_mb_to_unicode($string, $encoding = null) {
-    if ($encoding) {
-        $expanded = mb_convert_encoding($string, "UTF-32BE", $encoding);
-    } else {
-        $expanded = mb_convert_encoding($string, "UTF-32BE");
-    }
-
-    return unpack("N*", $expanded);
-}
-
-/**
- * convert unicodes to the character of given encoding
- *
- * @link   http://www.ibm.com/developerworks/library/os-php-unicode/index.html#listing3 for inspiration
- *
- * @param integer|array $unicode single unicode or list of unicodes to convert
- * @param string $encoding encoding of returned string, if null mb_internal_encoding() is used
- *
- * @return string unicode as character sequence in given $encoding
- * @author Rodney Rehm
- */
-function smarty_mb_from_unicode($unicode, $encoding = null) {
-    $t = '';
-    if (!$encoding) {
-        $encoding = mb_internal_encoding();
-    }
-    foreach ((array)$unicode as $utf32be) {
-        $character = pack("N*", $utf32be);
-        $t .= mb_convert_encoding($character, $encoding, "UTF-32BE");
-    }
-
-    return $t;
-}