diff --git a/library/smarty/libs/sysplugins/smarty_cacheresource.php b/library/smarty/libs/sysplugins/smarty_cacheresource.php
deleted file mode 100644
--- a/library/smarty/libs/sysplugins/smarty_cacheresource.php
+++ /dev/null
@@ -1,221 +0,0 @@
-<?php
-/**
- * Smarty Internal Plugin
- *
- * @package    Smarty
- * @subpackage Cacher
- */
-
-/**
- * Cache Handler API
- *
- * @package    Smarty
- * @subpackage Cacher
- * @author     Rodney Rehm
- */
-abstract class Smarty_CacheResource {
-    /**
-     * resource types provided by the core
-     *
-     * @var array
-     */
-    protected static $sysplugins = array(
-        'file' => 'smarty_internal_cacheresource_file.php',
-    );
-
-    /**
-     * populate Cached Object with meta data from Resource
-     *
-     * @param Smarty_Template_Cached $cached cached object
-     * @param Smarty_Internal_Template $_template template object
-     *
-     * @return void
-     */
-    abstract public function populate(Smarty_Template_Cached $cached, Smarty_Internal_Template $_template);
-
-    /**
-     * populate Cached Object with timestamp and exists from Resource
-     *
-     * @param Smarty_Template_Cached $cached
-     *
-     * @return void
-     */
-    abstract public function populateTimestamp(Smarty_Template_Cached $cached);
-
-    /**
-     * Read the cached template and process header
-     *
-     * @param Smarty_Internal_Template $_template template object
-     * @param Smarty_Template_Cached $cached cached object
-     *
-     * @return boolean true or false if the cached content does not exist
-     */
-    abstract public function process(Smarty_Internal_Template $_template, Smarty_Template_Cached $cached = null);
-
-    /**
-     * Write the rendered template output to cache
-     *
-     * @param Smarty_Internal_Template $_template template object
-     * @param string $content content to cache
-     *
-     * @return boolean success
-     */
-    abstract public function writeCachedContent(Smarty_Internal_Template $_template, $content);
-
-    /**
-     * Return cached content
-     *
-     * @param Smarty_Internal_Template $_template template object
-     *
-     * @return null|string
-     */
-    public function getCachedContent(Smarty_Internal_Template $_template) {
-        if ($_template->cached->handler->process($_template)) {
-            ob_start();
-            $_template->properties['unifunc']($_template);
-
-            return ob_get_clean();
-        }
-
-        return null;
-    }
-
-    /**
-     * Empty cache
-     *
-     * @param Smarty $smarty Smarty object
-     * @param integer $exp_time expiration time (number of seconds, not timestamp)
-     *
-     * @return integer number of cache files deleted
-     */
-    abstract public function clearAll(Smarty $smarty, $exp_time = null);
-
-    /**
-     * Empty cache for a specific template
-     *
-     * @param Smarty $smarty Smarty object
-     * @param string $resource_name template name
-     * @param string $cache_id cache id
-     * @param string $compile_id compile id
-     * @param integer $exp_time expiration time (number of seconds, not timestamp)
-     *
-     * @return integer number of cache files deleted
-     */
-    abstract public function clear(Smarty $smarty, $resource_name, $cache_id, $compile_id, $exp_time);
-
-    /**
-     * @param Smarty $smarty
-     * @param Smarty_Template_Cached $cached
-     *
-     * @return bool|null
-     */
-    public function locked(Smarty $smarty, Smarty_Template_Cached $cached) {
-        // theoretically locking_timeout should be checked against time_limit (max_execution_time)
-        $start = microtime(true);
-        $hadLock = null;
-        while ($this->hasLock($smarty, $cached)) {
-            $hadLock = true;
-            if (microtime(true) - $start > $smarty->locking_timeout) {
-                // abort waiting for lock release
-                return false;
-            }
-            sleep(1);
-        }
-
-        return $hadLock;
-    }
-
-    /**
-     * Check is cache is locked for this template
-     *
-     * @param Smarty $smarty
-     * @param Smarty_Template_Cached $cached
-     *
-     * @return bool
-     */
-    public function hasLock(Smarty $smarty, Smarty_Template_Cached $cached) {
-        // check if lock exists
-        return false;
-    }
-
-    /**
-     * Lock cache for this template
-     *
-     * @param Smarty $smarty
-     * @param Smarty_Template_Cached $cached
-     *
-     * @return bool
-     */
-    public function acquireLock(Smarty $smarty, Smarty_Template_Cached $cached) {
-        // create lock
-        return true;
-    }
-
-    /**
-     * Unlock cache for this template
-     *
-     * @param Smarty $smarty
-     * @param Smarty_Template_Cached $cached
-     *
-     * @return bool
-     */
-    public function releaseLock(Smarty $smarty, Smarty_Template_Cached $cached) {
-        // release lock
-        return true;
-    }
-
-    /**
-     * Load Cache Resource Handler
-     *
-     * @param Smarty $smarty Smarty object
-     * @param string $type name of the cache resource
-     *
-     * @throws SmartyException
-     * @return Smarty_CacheResource Cache Resource Handler
-     */
-    public static function load(Smarty $smarty, $type = null) {
-        if (!isset($type)) {
-            $type = $smarty->caching_type;
-        }
-
-        // try smarty's cache
-        if (isset($smarty->_cacheresource_handlers[$type])) {
-            return $smarty->_cacheresource_handlers[$type];
-        }
-
-        // try registered resource
-        if (isset($smarty->registered_cache_resources[$type])) {
-            // do not cache these instances as they may vary from instance to instance
-            return $smarty->_cacheresource_handlers[$type] = $smarty->registered_cache_resources[$type];
-        }
-        // try sysplugins dir
-        if (isset(self::$sysplugins[$type])) {
-            $cache_resource_class = 'Smarty_Internal_CacheResource_' . ucfirst($type);
-            if (!class_exists($cache_resource_class, false)) {
-                require SMARTY_SYSPLUGINS_DIR . self::$sysplugins[$type];
-            }
-            return $smarty->_cacheresource_handlers[$type] = new $cache_resource_class();
-        }
-        // try plugins dir
-        $cache_resource_class = 'Smarty_CacheResource_' . ucfirst($type);
-        if ($smarty->loadPlugin($cache_resource_class)) {
-            return $smarty->_cacheresource_handlers[$type] = new $cache_resource_class();
-        }
-        // give up
-        throw new SmartyException("Unable to load cache resource '{$type}'");
-    }
-
-    /**
-     * Invalid Loaded Cache Files
-     *
-     * @param Smarty $smarty Smarty object
-     */
-    public static function invalidLoadedCache(Smarty $smarty) {
-        foreach ($smarty->template_objects as $tpl) {
-            if (isset($tpl->cached)) {
-                $tpl->cached->valid = false;
-                $tpl->cached->processed = false;
-            }
-        }
-    }
-}