diff --git a/library/smarty/libs/sysplugins/smarty_internal_resource_extends.php b/library/smarty/libs/sysplugins/smarty_internal_resource_extends.php
deleted file mode 100644
--- a/library/smarty/libs/sysplugins/smarty_internal_resource_extends.php
+++ /dev/null
@@ -1,107 +0,0 @@
-<?php
-/**
- * Smarty Internal Plugin Resource Extends
- *
- * @package    Smarty
- * @subpackage TemplateResources
- * @author     Uwe Tews
- * @author     Rodney Rehm
- */
-
-/**
- * Smarty Internal Plugin Resource Extends
- * Implements the file system as resource for Smarty which {extend}s a chain of template files templates
- *
- * @package    Smarty
- * @subpackage TemplateResources
- */
-class Smarty_Internal_Resource_Extends extends Smarty_Resource {
-    /**
-     * mbstring.overload flag
-     *
-     * @var int
-     */
-    public $mbstring_overload = 0;
-
-    /**
-     * populate Source Object with meta data from Resource
-     *
-     * @param Smarty_Template_Source $source source object
-     * @param Smarty_Internal_Template $_template template object
-     *
-     * @throws SmartyException
-     */
-    public function populate(Smarty_Template_Source $source, Smarty_Internal_Template $_template = null) {
-        $uid = sha1(getcwd());
-        $sources = array();
-        $components = explode('|', $source->name);
-        $exists = true;
-        foreach ($components as $component) {
-            $s = Smarty_Resource::source(null, $source->smarty, $component);
-            if ($s->type == 'php') {
-                throw new SmartyException("Resource type {$s->type} cannot be used with the extends resource type");
-            }
-            $sources[$s->uid] = $s;
-            $uid .= realpath($s->filepath);
-            if ($_template && $_template->smarty->compile_check) {
-                $exists = $exists && $s->exists;
-            }
-        }
-        $source->components = $sources;
-        $source->filepath = $s->filepath;
-        $source->uid = sha1($uid);
-        if ($_template && $_template->smarty->compile_check) {
-            $source->timestamp = $s->timestamp;
-            $source->exists = $exists;
-        }
-        // need the template at getContent()
-        $source->template = $_template;
-    }
-
-    /**
-     * populate Source Object with timestamp and exists from Resource
-     *
-     * @param Smarty_Template_Source $source source object
-     */
-    public function populateTimestamp(Smarty_Template_Source $source) {
-        $source->exists = true;
-        foreach ($source->components as $s) {
-            $source->exists = $source->exists && $s->exists;
-        }
-        $source->timestamp = $s->timestamp;
-    }
-
-    /**
-     * Load template's source from files into current template object
-     *
-     * @param Smarty_Template_Source $source source object
-     *
-     * @return string template source
-     * @throws SmartyException if source cannot be loaded
-     */
-    public function getContent(Smarty_Template_Source $source) {
-        if (!$source->exists) {
-            throw new SmartyException("Unable to read template {$source->type} '{$source->name}'");
-        }
-
-        $_components = array_reverse($source->components);
-
-        $_content = '';
-        foreach ($_components as $_component) {
-            // read content
-            $_content .= $_component->content;
-        }
-        return $_content;
-    }
-
-    /**
-     * Determine basename for compiled filename
-     *
-     * @param Smarty_Template_Source $source source object
-     *
-     * @return string resource's basename
-     */
-    public function getBasename(Smarty_Template_Source $source) {
-        return str_replace(':', '.', basename($source->filepath));
-    }
-}