Move unused function

git-svn-id: https://adminer.svn.sourceforge.net/svnroot/adminer/trunk@1030 7c3ca157-0c34-0410-bff1-cbf682f78f5c

editor/include/editing.inc.php

@@ -1,2 +1,5 @@
 <?php
-
+function email_header($header) {
+	// iconv_mime_encode requires PHP 5, imap_8bit requires IMAP extension
+	return "=?UTF-8?B?" . base64_encode($header) . "?="; //! split long lines
+}