Remove documentation on non-existent variable

git-svn-id: https://svn.apache.org/repos/asf/maven/doxia/doxia-sitetools/trunk@1729632 13f79535-47bb-0310-9956-ffa450edef68
diff --git a/doxia-site-renderer/src/site/apt/index.apt.vm b/doxia-site-renderer/src/site/apt/index.apt.vm
index 90c2a53..0a5c9b0 100644
--- a/doxia-site-renderer/src/site/apt/index.apt.vm
+++ b/doxia-site-renderer/src/site/apt/index.apt.vm
@@ -71,8 +71,6 @@
 *---------------------------------+----------------------+-------------------------------+
 | <<<doxiaSiteRendererVersion>>>  | <<<String>>>         | The version of Doxia Site Renderer in use |
 *---------------------------------+----------------------+-------------------------------+
-| <<<isoDateFormat>>>             | <<<DateFormat>>>     | An instance of the ISO-8601 date format, ie "yyyy-MM-dd" |
-*---------------------------------+----------------------+-------------------------------+
 | <<<locale>>>                    | <<<Locale>>>         | The locale for the document being rendered |
 *---------------------------------+----------------------+-------------------------------+
 | <<<publishDate>>>               | <<<Date>>>           | An optional hardcoded publish date that has been set programmatically |