Remove links to old infocenters

Change-Id: I4eaf18cddb99be313f9fc39b8a47fbe9b8da5e52
Signed-off-by: Frederic Gurr <frederic.gurr@eclipse-foundation.org>
diff --git a/content/en_index.php b/content/en_index.php
index a9e70af..1594337 100644
--- a/content/en_index.php
+++ b/content/en_index.php
@@ -25,17 +25,11 @@
   <li><a href="http://help.eclipse.org/2018-12/index.jsp"><i class="fa fa-globe"></i> Eclipse IDE 2018-12 (4.10) Documentation</a> (HTML Help Center)</li>
   <li><a href="http://help.eclipse.org/2018-09/index.jsp"><i class="fa fa-globe"></i> Eclipse IDE 2018-09 (4.9) Documentation</a> (HTML Help Center)</li>
   <li><a href="http://help.eclipse.org/photon/index.jsp"><i class="fa fa-globe"></i> Eclipse Photon (4.8) Documentation</a> (HTML Help Center)</li>
-  <li><a href="http://help.eclipse.org/oxygen/index.jsp"><i class="fa fa-globe"></i> Eclipse Oxygen (4.7) Documentation</a> (HTML Help Center)</li>
-  <li><a href="http://help.eclipse.org/neon/index.jsp"><i class="fa fa-globe"></i> Eclipse Neon (4.6) Documentation</a> (HTML Help Center)</li>
-  <li><a href="http://help.eclipse.org/mars/index.jsp"><i class="fa fa-globe"></i> Eclipse Mars (4.5) Documentation</a> (HTML Help Center)</li>
-  <li><a href="http://help.eclipse.org/luna/index.jsp"><i class="fa fa-globe"></i> Eclipse Luna (4.4) Documentation</a> (HTML Help Center)</li>
-  <li><a href="http://help.eclipse.org/kepler/index.jsp"><i class="fa fa-globe"></i> Eclipse Kepler (4.3) Documentation</a> (HTML Help Center)</li>
 </ul>
-<h3>Eclipse 3.1 Documentation</h3>
+
+For even older releases (Oxygen, Neon, Mars, etc), please download the corresponding Eclipse SDK or any EPP package and start the Information center locally as described here:
 <ul class="fa-ul">
-  <li><a href="http://archive.eclipse.org/eclipse/downloads/drops/R-3.1-200506271435/org.eclipse.platform.doc.user.3.1.pdf.zip"><i class="fa fa-file-archive-o"></i> Workbench User Guide</a></li>
-  <li><a href="http://archive.eclipse.org/eclipse/downloads/drops/R-3.1-200506271435/org.eclipse.jdt.doc.user.3.1.pdf.zip"><i class="fa fa-file-archive-o"></i> Java Development User Guide</a></li>
-  <li><a href="http://archive.eclipse.org/eclipse/downloads/drops/R-3.1-200506271435/org.eclipse.pde.doc.user.3.1.pdf.zip"><i class="fa fa-file-archive-o"></i> PDE Guide</a></li>
-  <li><a href="http://archive.eclipse.org/eclipse/downloads/drops/R-3.1-200506271435/org.eclipse.platform.doc.isv.3.1.pdf.zip"><i class="fa fa-file-archive-o"></i> Platform Plug-in Developer Guide</a></li>
-  <li><a href="http://archive.eclipse.org/eclipse/downloads/drops/R-3.1-200506271435/org.eclipse.jdt.doc.isv.3.1.pdf.zip"><i class="fa fa-file-archive-o"></i> JDT Plug-in Developer Guide</a></li>
+  <li><a href="https://help.eclipse.org/index.jsp?topic=%2Forg.eclipse.platform.doc.isv%2Fguide%2Fua_help_setup_infocenter.htm">How to start or stop information center from command line</a></li>
 </ul>
+
+