deleted file mode 100644
--- a/library/smarty/libs/plugins/function.math.php
+++ /dev/null
@@ -1,90 +0,0 @@
-<?php
-/**
- * Smarty plugin
- * This plugin is only for Smarty2 BC
- *
- * @package    Smarty
- * @subpackage PluginsFunction
- */
-
-/**
- * Smarty {math} function plugin
- * Type:     function<br>
- * Name:     math<br>
- * Purpose:  handle math computations in template
- *
- * @link     http://www.smarty.net/manual/en/language.function.math.php {math}
- *           (Smarty online manual)
- * @author   Monte Ohrt <monte at ohrt dot com>
- *
- * @param array $params parameters
- * @param Smarty_Internal_Template $template template object
- *
- * @return string|null
- */
-function smarty_function_math($params, $template) {
-    static $_allowed_funcs = array(
-        'int' => true, 'abs' => true, 'ceil' => true, 'cos' => true, 'exp' => true, 'floor' => true,
-        'log' => true, 'log10' => true, 'max' => true, 'min' => true, 'pi' => true, 'pow' => true,
-        'rand' => true, 'round' => true, 'sin' => true, 'sqrt' => true, 'srand' => true, 'tan' => true
-    );
-    // be sure equation parameter is present
-    if (empty($params['equation'])) {
-        trigger_error("math: missing equation parameter", E_USER_WARNING);
-
-        return;
-    }
-
-    $equation = $params['equation'];
-
-    // make sure parenthesis are balanced
-    if (substr_count($equation, "(") != substr_count($equation, ")")) {
-        trigger_error("math: unbalanced parenthesis", E_USER_WARNING);
-
-        return;
-    }
-
-    // match all vars in equation, make sure all are passed
-    preg_match_all("!(?:0x[a-fA-F0-9]+)|([a-zA-Z][a-zA-Z0-9_]*)!", $equation, $match);
-
-    foreach ($match[1] as $curr_var) {
-        if ($curr_var && !isset($params[$curr_var]) && !isset($_allowed_funcs[$curr_var])) {
-            trigger_error("math: function call $curr_var not allowed", E_USER_WARNING);
-
-            return;
-        }
-    }
-
-    foreach ($params as $key => $val) {
-        if ($key != "equation" && $key != "format" && $key != "assign") {
-            // make sure value is not empty
-            if (strlen($val) == 0) {
-                trigger_error("math: parameter $key is empty", E_USER_WARNING);
-
-                return;
-            }
-            if (!is_numeric($val)) {
-                trigger_error("math: parameter $key: is not numeric", E_USER_WARNING);
-
-                return;
-            }
-            $equation = preg_replace("/\b$key\b/", " \$params['$key'] ", $equation);
-        }
-    }
-    $smarty_math_result = null;
-    eval("\$smarty_math_result = " . $equation . ";");
-
-    if (empty($params['format'])) {
-        if (empty($params['assign'])) {
-            return $smarty_math_result;
-        } else {
-            $template->assign($params['assign'], $smarty_math_result);
-        }
-    } else {
-        if (empty($params['assign'])) {
-            printf($params['format'], $smarty_math_result);
-        } else {
-            $template->assign($params['assign'], sprintf($params['format'], $smarty_math_result));
-        }
-    }
-}