Remove old unused code rendering

Author: jaapio

config/services.xml

@@ -155,10 +155,6 @@
         </service>
         <service id="Psr\EventDispatcher\EventDispatcherInterface" class="Symfony\Component\EventDispatcher\EventDispatcher" />
 
-<!--        <service id="Doctrine\Website\Guides\Renderer\CodeBlockRenderer">-->
-<!--            <tag name="phpdoc.guides.noderenderer.html" />-->
-<!--        </service>-->
-
         <service id="Doctrine\Website\Guides\ReferenceResolver\HtmlResolver">
             <tag name="phpdoc.guides.reference_resolver" />
         </service>