diff --git a/library/smarty/libs/sysplugins/smarty_internal_compile_private_modifier.php b/library/smarty/libs/sysplugins/smarty_internal_compile_private_modifier.php
deleted file mode 100644
--- a/library/smarty/libs/sysplugins/smarty_internal_compile_private_modifier.php
+++ /dev/null
@@ -1,137 +0,0 @@
-<?php
-
-/**
- * Smarty Internal Plugin Compile Modifier
- * Compiles code for modifier execution
- *
- * @package    Smarty
- * @subpackage Compiler
- * @author     Uwe Tews
- */
-
-/**
- * Smarty Internal Plugin Compile Modifier Class
- *
- * @package    Smarty
- * @subpackage Compiler
- */
-class Smarty_Internal_Compile_Private_Modifier extends Smarty_Internal_CompileBase {
-    /**
-     * Compiles code for modifier execution
-     *
-     * @param  array $args array with attributes from parser
-     * @param  object $compiler compiler object
-     * @param  array $parameter array with compilation parameter
-     *
-     * @return string compiled code
-     */
-    public function compile($args, $compiler, $parameter) {
-        // check and get attributes
-        $_attr = $this->getAttributes($compiler, $args);
-        $output = $parameter['value'];
-        // loop over list of modifiers
-        foreach ($parameter['modifierlist'] as $single_modifier) {
-            $modifier = $single_modifier[0];
-            $single_modifier[0] = $output;
-            $params = implode(',', $single_modifier);
-            // check if we know already the type of modifier
-            if (isset($compiler->known_modifier_type[$modifier])) {
-                $modifier_types = array($compiler->known_modifier_type[$modifier]);
-            } else {
-                $modifier_types = array(1, 2, 3, 4, 5, 6);
-            }
-            foreach ($modifier_types as $type) {
-                switch ($type) {
-                    case 1:
-                        // registered modifier
-                        if (isset($compiler->smarty->registered_plugins[Smarty::PLUGIN_MODIFIER][$modifier])) {
-                            $function = $compiler->smarty->registered_plugins[Smarty::PLUGIN_MODIFIER][$modifier][0];
-                            if (!is_array($function)) {
-                                $output = "{$function}({$params})";
-                            } else {
-                                if (is_object($function[0])) {
-                                    $output = '$_smarty_tpl->smarty->registered_plugins[Smarty::PLUGIN_MODIFIER][\'' . $modifier . '\'][0][0]->' . $function[1] . '(' . $params . ')';
-                                } else {
-                                    $output = $function[0] . '::' . $function[1] . '(' . $params . ')';
-                                }
-                            }
-                            $compiler->known_modifier_type[$modifier] = $type;
-                            break 2;
-                        }
-                        break;
-                    case 2:
-                        // registered modifier compiler
-                        if (isset($compiler->smarty->registered_plugins[Smarty::PLUGIN_MODIFIERCOMPILER][$modifier][0])) {
-                            $output = call_user_func($compiler->smarty->registered_plugins[Smarty::PLUGIN_MODIFIERCOMPILER][$modifier][0], $single_modifier, $compiler->smarty);
-                            $compiler->known_modifier_type[$modifier] = $type;
-                            break 2;
-                        }
-                        break;
-                    case 3:
-                        // modifiercompiler plugin
-                        if ($compiler->smarty->loadPlugin('smarty_modifiercompiler_' . $modifier)) {
-                            // check if modifier allowed
-                            if (!is_object($compiler->smarty->security_policy) || $compiler->smarty->security_policy->isTrustedModifier($modifier, $compiler)) {
-                                $plugin = 'smarty_modifiercompiler_' . $modifier;
-                                $output = $plugin($single_modifier, $compiler);
-                            }
-                            $compiler->known_modifier_type[$modifier] = $type;
-                            break 2;
-                        }
-                        break;
-                    case 4:
-                        // modifier plugin
-                        if ($function = $compiler->getPlugin($modifier, Smarty::PLUGIN_MODIFIER)) {
-                            // check if modifier allowed
-                            if (!is_object($compiler->smarty->security_policy) || $compiler->smarty->security_policy->isTrustedModifier($modifier, $compiler)) {
-                                $output = "{$function}({$params})";
-                            }
-                            $compiler->known_modifier_type[$modifier] = $type;
-                            break 2;
-                        }
-                        break;
-                    case 5:
-                        // PHP function
-                        if (is_callable($modifier)) {
-                            // check if modifier allowed
-                            if (!is_object($compiler->smarty->security_policy) || $compiler->smarty->security_policy->isTrustedPhpModifier($modifier, $compiler)) {
-                                $output = "{$modifier}({$params})";
-                            }
-                            $compiler->known_modifier_type[$modifier] = $type;
-                            break 2;
-                        }
-                        break;
-                    case 6:
-                        // default plugin handler
-                        if (isset($compiler->default_handler_plugins[Smarty::PLUGIN_MODIFIER][$modifier]) || (is_callable($compiler->smarty->default_plugin_handler_func) && $compiler->getPluginFromDefaultHandler($modifier, Smarty::PLUGIN_MODIFIER))) {
-                            $function = $compiler->default_handler_plugins[Smarty::PLUGIN_MODIFIER][$modifier][0];
-                            // check if modifier allowed
-                            if (!is_object($compiler->smarty->security_policy) || $compiler->smarty->security_policy->isTrustedModifier($modifier, $compiler)) {
-                                if (!is_array($function)) {
-                                    $output = "{$function}({$params})";
-                                } else {
-                                    if (is_object($function[0])) {
-                                        $output = '$_smarty_tpl->smarty->registered_plugins[Smarty::PLUGIN_MODIFIER][\'' . $modifier . '\'][0][0]->' . $function[1] . '(' . $params . ')';
-                                    } else {
-                                        $output = $function[0] . '::' . $function[1] . '(' . $params . ')';
-                                    }
-                                }
-                            }
-                            if (isset($compiler->template->required_plugins['nocache'][$modifier][Smarty::PLUGIN_MODIFIER]['file']) || isset($compiler->template->required_plugins['compiled'][$modifier][Smarty::PLUGIN_MODIFIER]['file'])) {
-                                // was a plugin
-                                $compiler->known_modifier_type[$modifier] = 4;
-                            } else {
-                                $compiler->known_modifier_type[$modifier] = $type;
-                            }
-                            break 2;
-                        }
-                }
-            }
-            if (!isset($compiler->known_modifier_type[$modifier])) {
-                $compiler->trigger_template_error("unknown modifier \"" . $modifier . "\"", $compiler->lex->taglineno);
-            }
-        }
-
-        return $output;
-    }
-}