MDL-11758 removing one htmlpurifier file to prevent problems on some systems; merged from MOODLE_19_STABLE

lib/htmlpurifier/HTMLPurifier/AttrDef/URI/Email/SimpleCheck.php

@@ -1,22 +0,0 @@
-<?php
-
-require_once 'HTMLPurifier/AttrDef/URI/Email.php';
-
-/**
- * Primitive email validation class based on the regexp found at 
- * http://www.regular-expressions.info/email.html
- */
-class HTMLPurifier_AttrDef_URI_Email_SimpleCheck extends HTMLPurifier_AttrDef_URI_Email
-{
-    
-    function validate($string, $config, &$context) {
-        // no support for named mailboxes i.e. "Bob <[email protected]>"
-        // that needs more percent encoding to be done
-        if ($string == '') return false;
-        $string = trim($string);
-        $result = preg_match('/^[A-Z0-9._%-]+@[A-Z0-9.-]+\.[A-Z]{2,4}$/i', $string);
-        return $result ? $string : false;
-    }
-    
-}
-