diff --git a/library/smarty/libs/sysplugins/smarty_internal_compilebase.php b/library/smarty/libs/sysplugins/smarty_internal_compilebase.php
deleted file mode 100644
--- a/library/smarty/libs/sysplugins/smarty_internal_compilebase.php
+++ /dev/null
@@ -1,170 +0,0 @@
-<?php
-/**
- * Smarty Internal Plugin CompileBase
- *
- * @package    Smarty
- * @subpackage Compiler
- * @author     Uwe Tews
- */
-
-/**
- * This class does extend all internal compile plugins
- *
- * @package    Smarty
- * @subpackage Compiler
- */
-abstract class Smarty_Internal_CompileBase {
-    /**
-     * Array of names of required attribute required by tag
-     *
-     * @var array
-     */
-    public $required_attributes = array();
-    /**
-     * Array of names of optional attribute required by tag
-     * use array('_any') if there is no restriction of attributes names
-     *
-     * @var array
-     */
-    public $optional_attributes = array();
-    /**
-     * Shorttag attribute order defined by its names
-     *
-     * @var array
-     */
-    public $shorttag_order = array();
-    /**
-     * Array of names of valid option flags
-     *
-     * @var array
-     */
-    public $option_flags = array('nocache');
-
-    /**
-     * This function checks if the attributes passed are valid
-     * The attributes passed for the tag to compile are checked against the list of required and
-     * optional attributes. Required attributes must be present. Optional attributes are check against
-     * the corresponding list. The keyword '_any' specifies that any attribute will be accepted
-     * as valid
-     *
-     * @param  object $compiler compiler object
-     * @param  array $attributes attributes applied to the tag
-     *
-     * @return array  of mapped attributes for further processing
-     */
-    public function getAttributes($compiler, $attributes) {
-        $_indexed_attr = array();
-        // loop over attributes
-        foreach ($attributes as $key => $mixed) {
-            // shorthand ?
-            if (!is_array($mixed)) {
-                // option flag ?
-                if (in_array(trim($mixed, '\'"'), $this->option_flags)) {
-                    $_indexed_attr[trim($mixed, '\'"')] = true;
-                    // shorthand attribute ?
-                } elseif (isset($this->shorttag_order[$key])) {
-                    $_indexed_attr[$this->shorttag_order[$key]] = $mixed;
-                } else {
-                    // too many shorthands
-                    $compiler->trigger_template_error('too many shorthand attributes', $compiler->lex->taglineno);
-                }
-                // named attribute
-            } else {
-                $kv = each($mixed);
-                // option flag?
-                if (in_array($kv['key'], $this->option_flags)) {
-                    if (is_bool($kv['value'])) {
-                        $_indexed_attr[$kv['key']] = $kv['value'];
-                    } elseif (is_string($kv['value']) && in_array(trim($kv['value'], '\'"'), array('true', 'false'))) {
-                        if (trim($kv['value']) == 'true') {
-                            $_indexed_attr[$kv['key']] = true;
-                        } else {
-                            $_indexed_attr[$kv['key']] = false;
-                        }
-                    } elseif (is_numeric($kv['value']) && in_array($kv['value'], array(0, 1))) {
-                        if ($kv['value'] == 1) {
-                            $_indexed_attr[$kv['key']] = true;
-                        } else {
-                            $_indexed_attr[$kv['key']] = false;
-                        }
-                    } else {
-                        $compiler->trigger_template_error("illegal value of option flag \"{$kv['key']}\"", $compiler->lex->taglineno);
-                    }
-                    // must be named attribute
-                } else {
-                    reset($mixed);
-                    $_indexed_attr[key($mixed)] = $mixed[key($mixed)];
-                }
-            }
-        }
-        // check if all required attributes present
-        foreach ($this->required_attributes as $attr) {
-            if (!array_key_exists($attr, $_indexed_attr)) {
-                $compiler->trigger_template_error("missing \"" . $attr . "\" attribute", $compiler->lex->taglineno);
-            }
-        }
-        // check for not allowed attributes
-        if ($this->optional_attributes != array('_any')) {
-            $tmp_array = array_merge($this->required_attributes, $this->optional_attributes, $this->option_flags);
-            foreach ($_indexed_attr as $key => $dummy) {
-                if (!in_array($key, $tmp_array) && $key !== 0) {
-                    $compiler->trigger_template_error("unexpected \"" . $key . "\" attribute", $compiler->lex->taglineno);
-                }
-            }
-        }
-        // default 'false' for all option flags not set
-        foreach ($this->option_flags as $flag) {
-            if (!isset($_indexed_attr[$flag])) {
-                $_indexed_attr[$flag] = false;
-            }
-        }
-
-        return $_indexed_attr;
-    }
-
-    /**
-     * Push opening tag name on stack
-     * Optionally additional data can be saved on stack
-     *
-     * @param object $compiler compiler object
-     * @param string $openTag the opening tag's name
-     * @param mixed $data optional data saved
-     */
-    public function openTag($compiler, $openTag, $data = null) {
-        array_push($compiler->_tag_stack, array($openTag, $data));
-    }
-
-    /**
-     * Pop closing tag
-     * Raise an error if this stack-top doesn't match with expected opening tags
-     *
-     * @param  object $compiler compiler object
-     * @param  array|string $expectedTag the expected opening tag names
-     *
-     * @return mixed        any type the opening tag's name or saved data
-     */
-    public function closeTag($compiler, $expectedTag) {
-        if (count($compiler->_tag_stack) > 0) {
-            // get stacked info
-            list($_openTag, $_data) = array_pop($compiler->_tag_stack);
-            // open tag must match with the expected ones
-            if (in_array($_openTag, (array)$expectedTag)) {
-                if (is_null($_data)) {
-                    // return opening tag
-                    return $_openTag;
-                } else {
-                    // return restored data
-                    return $_data;
-                }
-            }
-            // wrong nesting of tags
-            $compiler->trigger_template_error("unclosed {$compiler->smarty->left_delimiter}" . $_openTag . "{$compiler->smarty->right_delimiter} tag");
-
-            return;
-        }
-        // wrong nesting of tags
-        $compiler->trigger_template_error("unexpected closing tag", $compiler->lex->taglineno);
-
-        return;
-    }
-}