diff --git a/main/inc/lib/pear/HTML/QuickForm/xbutton.php b/main/inc/lib/pear/HTML/QuickForm/xbutton.php
deleted file mode 100755
index 343d0dbe42..0000000000
--- a/main/inc/lib/pear/HTML/QuickForm/xbutton.php
+++ /dev/null
@@ -1,148 +0,0 @@
-<?php
-/* vim: set expandtab tabstop=4 shiftwidth=4 softtabstop=4: */
-
-/**
- * Class for HTML 4.0 <button> element
- *
- * PHP versions 4 and 5
- *
- * LICENSE: This source file is subject to version 3.01 of the PHP license
- * that is available through the world-wide-web at the following URI:
- * http://www.php.net/license/3_01.txt If you did not receive a copy of
- * the PHP License and are unable to obtain it through the web, please
- * send a note to license@php.net so we can mail you a copy immediately.
- *
- * @category    HTML
- * @package     HTML_QuickForm
- * @author      Alexey Borzov <avb@php.net>
- * @copyright   2001-2009 The PHP Group
- * @license     http://www.php.net/license/3_01.txt PHP License 3.01
- * @version     CVS: $Id: xbutton.php,v 1.3 2009/04/04 21:34:04 avb Exp $
- * @link        http://pear.php.net/package/HTML_QuickForm
- */
-
-/**
- * Class for HTML 4.0 <button> element
- *
- * @category    HTML
- * @package     HTML_QuickForm
- * @author      Alexey Borzov <avb@php.net>
- * @version     Release: 3.2.11
- * @since       3.2.3
- */
-class HTML_QuickForm_xbutton extends HTML_QuickForm_element
-{
-   /**
-    * Contents of the <button> tag
-    * @var      string
-    * @access   private
-    */
-    var $_content;
-
-   /**
-    * Class constructor
-    *
-    * @param    string  Button name
-    * @param    string  Button content (HTML to add between <button></button> tags)
-    * @param    mixed   Either a typical HTML attribute string or an associative array
-    * @access   public
-    */
-    function HTML_QuickForm_xbutton($elementName = null, $elementContent = null, $attributes = null)
-    {
-        $this->HTML_QuickForm_element($elementName, null, $attributes);
-        $this->setContent($elementContent);
-        $this->setPersistantFreeze(false);
-        $this->_type = 'xbutton';
-    }
-
-
-    function toHtml()
-    {
-        return '<button' . $this->getAttributes(true) . '>' . $this->_content . '</button>';
-    }
-
-
-    function getFrozenHtml()
-    {
-        return $this->toHtml();
-    }
-
-
-    function freeze()
-    {
-        return false;
-    }
-
-
-    function setName($name)
-    {
-        $this->updateAttributes(array(
-            'name' => $name
-        ));
-    }
-
-
-    function getName()
-    {
-        return $this->getAttribute('name');
-    }
-
-
-    function setValue($value)
-    {
-        $this->updateAttributes(array(
-            'value' => $value
-        ));
-    }
-
-
-    function getValue()
-    {
-        return $this->getAttribute('value');
-    }
-
-
-   /**
-    * Sets the contents of the button element
-    *
-    * @param    string  Button content (HTML to add between <button></button> tags)
-    */
-    function setContent($content)
-    {
-        $this->_content = $content;
-    }
-
-
-    function onQuickFormEvent($event, $arg, &$caller)
-    {
-        if ('updateValue' != $event) {
-            return parent::onQuickFormEvent($event, $arg, $caller);
-        } else {
-            $value = $this->_findValue($caller->_constantValues);
-            if (null === $value) {
-                $value = $this->_findValue($caller->_defaultValues);
-            }
-            if (null !== $value) {
-                $this->setValue($value);
-            }
-        }
-        return true;
-    }
-
-
-   /**
-    * Returns a 'safe' element's value
-    *
-    * The value is only returned if the button's type is "submit" and if this
-    * particlular button was clicked
-    */
-    function exportValue(&$submitValues, $assoc = false)
-    {
-        if ('submit' == $this->getAttribute('type')) {
-            return $this->_prepareValue($this->_findValue($submitValues), $assoc);
-        } else {
-            return null;
-        }
-    }
-}
-?>