diff --git a/library/smarty/libs/sysplugins/smarty_resource_custom.php b/library/smarty/libs/sysplugins/smarty_resource_custom.php
deleted file mode 100644
--- a/library/smarty/libs/sysplugins/smarty_resource_custom.php
+++ /dev/null
@@ -1,90 +0,0 @@
-<?php
-/**
- * Smarty Resource Plugin
- *
- * @package    Smarty
- * @subpackage TemplateResources
- * @author     Rodney Rehm
- */
-
-/**
- * Smarty Resource Plugin
- * Wrapper Implementation for custom resource plugins
- *
- * @package    Smarty
- * @subpackage TemplateResources
- */
-abstract class Smarty_Resource_Custom extends Smarty_Resource {
-    /**
-     * fetch template and its modification time from data source
-     *
-     * @param string $name template name
-     * @param string &$source template source
-     * @param integer &$mtime template modification timestamp (epoch)
-     */
-    abstract protected function fetch($name, &$source, &$mtime);
-
-    /**
-     * Fetch template's modification timestamp from data source
-     * {@internal implementing this method is optional.
-     *  Only implement it if modification times can be accessed faster than loading the complete template source.}}
-     *
-     * @param  string $name template name
-     *
-     * @return integer|boolean timestamp (epoch) the template was modified, or false if not found
-     */
-    protected function fetchTimestamp($name) {
-        return null;
-    }
-
-    /**
-     * populate Source Object with meta data from Resource
-     *
-     * @param Smarty_Template_Source $source source object
-     * @param Smarty_Internal_Template $_template template object
-     */
-    public function populate(Smarty_Template_Source $source, Smarty_Internal_Template $_template = null) {
-        $source->filepath = $source->type . ':' . $source->name;
-        $source->uid = sha1($source->type . ':' . $source->name);
-
-        $mtime = $this->fetchTimestamp($source->name);
-        if ($mtime !== null) {
-            $source->timestamp = $mtime;
-        } else {
-            $this->fetch($source->name, $content, $timestamp);
-            $source->timestamp = isset($timestamp) ? $timestamp : false;
-            if (isset($content)) {
-                $source->content = $content;
-            }
-        }
-        $source->exists = !!$source->timestamp;
-    }
-
-    /**
-     * Load template's source 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) {
-        $this->fetch($source->name, $content, $timestamp);
-        if (isset($content)) {
-            return $content;
-        }
-
-        throw new SmartyException("Unable to read template {$source->type} '{$source->name}'");
-    }
-
-    /**
-     * Determine basename for compiled filename
-     *
-     * @param  Smarty_Template_Source $source source object
-     *
-     * @return string                 resource's basename
-     */
-    public function getBasename(Smarty_Template_Source $source) {
-        return basename($source->name);
-    }
-}