remove kindle link from guides index [ci skip]

guides/source/index.html.erb

@@ -9,9 +9,7 @@ Ruby on Rails Guides
 <% content_for :index_section do %>
 <div id="subCol">
   <dl>
-   <% # Does it make sense to link to Kindle? I'd say no, but if it does, shouldn't we also link to iPhone etc? %>
-    <dd class="kindle">Rails Guides are also available for the <%= link_to 'Kindle', 'https://kindle.amazon.com' %>
-and <%= link_to 'Free Kindle Reading Apps', 'http://www.amazon.com/gp/kindle/kcp' %> for the iPad,
+    <dd class="kindle">Rails Guides are also available for Kindle and <%= link_to 'Free Kindle Reading Apps', 'http://www.amazon.com/gp/kindle/kcp' %> for the iPad,
 iPhone, Mac, Android, etc. Download them from <%= link_to 'here', @mobi %>.
     </dd>
     <dd class="work-in-progress">Guides marked with this icon are currently being worked on and will not be available in the Guides Index menu. While still useful, they may contain incomplete information and even errors. You can help by reviewing them and posting your comments and corrections.</dd>