deleted file mode 100644
--- a/library/smarty/libs/sysplugins/smarty_internal_extension_config.php
+++ /dev/null
@@ -1,154 +0,0 @@
-<?php
-
-/**
- * @package    Smarty
- * @subpackage PluginsInternal
- */
-class Smarty_Internal_Extension_Config {
-    /**
-     * @param        $obj
-     * @param        $config_file
-     * @param null $sections
-     * @param string $scope
-     */
-    static function configLoad($obj, $config_file, $sections = null, $scope = 'local') {
-        $smarty = isset($obj->smarty) ? $obj->smarty : $obj;
-        $confObj = new $smarty->template_class($config_file, $smarty, $obj);
-        $confObj->caching = Smarty::CACHING_OFF;
-        $confObj->source = Smarty_Template_Config::load($confObj);
-        $confObj->source->config_sections = $sections;
-        $confObj->source->scope = $scope;
-        $confObj->compiled = Smarty_Template_Compiled::load($confObj);
-        if ($confObj->smarty->debugging) {
-            Smarty_Internal_Debug::start_render($confObj);
-        }
-        $confObj->compiled->render($confObj);
-        if ($confObj->smarty->debugging) {
-            Smarty_Internal_Debug::end_render($confObj);
-        }
-        if ($obj instanceof Smarty_Internal_Template) {
-            $obj->properties['file_dependency'][$confObj->source->uid] = array($confObj->source->filepath, $confObj->source->timestamp, $confObj->source->type);
-        }
-    }
-
-    /**
-     * load config variables
-     *
-     * @param mixed $sections array of section names, single section or null
-     * @param string $scope global,parent or local
-     *
-     * @throws Exception
-     */
-    static function loadConfigVars($_template, $_config_vars) {
-        $scope = $_template->source->scope;
-        // pointer to scope (local scope is parent of template object
-        $scope_ptr = $_template->parent;
-        if ($scope == 'parent') {
-            if (isset($_template->parent->parent)) {
-                $scope_ptr = $_template->parent->parent;
-            }
-        } elseif ($scope == 'root' || $scope == 'global') {
-            while (isset($scope_ptr->parent)) {
-                $scope_ptr = $scope_ptr->parent;
-            }
-        }
-        // copy global config vars
-        foreach ($_config_vars['vars'] as $variable => $value) {
-            if ($_template->smarty->config_overwrite || !isset($scope_ptr->config_vars[$variable])) {
-                $scope_ptr->config_vars[$variable] = $value;
-            } else {
-                $scope_ptr->config_vars[$variable] = array_merge((array)$scope_ptr->config_vars[$variable], (array)$value);
-            }
-        }
-        // scan sections
-        $sections = $_template->source->config_sections;
-        if (!empty($sections)) {
-            foreach ((array)$sections as $_template_section) {
-                if (isset($_config_vars['sections'][$_template_section])) {
-                    foreach ($_config_vars['sections'][$_template_section]['vars'] as $variable => $value) {
-                        if ($_template->smarty->config_overwrite || !isset($scope_ptr->config_vars[$variable])) {
-                            $scope_ptr->config_vars[$variable] = $value;
-                        } else {
-                            $scope_ptr->config_vars[$variable] = array_merge((array)$scope_ptr->config_vars[$variable], (array)$value);
-                        }
-                    }
-                }
-            }
-        }
-    }
-
-    /**
-     * Returns a single or all config variables
-     *
-     * @param  string $varname variable name or null
-     * @param bool $search_parents
-     *
-     * @return string variable value or or array of variables
-     */
-    static function getConfigVars($obj, $varname = null, $search_parents = true) {
-        $_ptr = $obj;
-        $var_array = array();
-        while ($_ptr !== null) {
-            if (isset($varname)) {
-                if (isset($_ptr->config_vars[$varname])) {
-                    return $_ptr->config_vars[$varname];
-                }
-            } else {
-                $var_array = array_merge($_ptr->config_vars, $var_array);
-            }
-            // not found, try at parent
-            if ($search_parents) {
-                $_ptr = $_ptr->parent;
-            } else {
-                $_ptr = null;
-            }
-        }
-        if (isset($varname)) {
-            return '';
-        } else {
-            return $var_array;
-        }
-    }
-
-    /**
-     * gets  a config variable
-     *
-     * @param  string $variable the name of the config variable
-     * @param bool $error_enable
-     *
-     * @return mixed  the value of the config variable
-     */
-    static function getConfigVariable($obj, $variable, $error_enable = true) {
-        $_ptr = $obj;
-        while ($_ptr !== null) {
-            if (isset($_ptr->config_vars[$variable])) {
-                // found it, return it
-                return $_ptr->config_vars[$variable];
-            }
-            // not found, try at parent
-            $_ptr = $_ptr->parent;
-        }
-        if ($obj->error_unassigned && $error_enable) {
-            // force a notice
-            $x = $$variable;
-        }
-
-        return null;
-    }
-
-    /**
-     * remove a single or all config variables
-     *
-     * @param  string $name variable name or null
-     *
-     * @return Smarty_Internal_Data current Smarty_Internal_Data (or Smarty or Smarty_Internal_Template) instance for chaining
-     */
-    static function clearConfig($obj, $name = null) {
-        if (isset($name)) {
-            unset($obj->config_vars[$name]);
-        } else {
-            $obj->config_vars = array();
-        }
-        return $obj;
-    }
-}