Remove link to a deprecated view

Release details links was removed so it was giving a 500 because the
template does not exist anymore, removing the link

templates/releng/release_list.html

@@ -44,7 +44,7 @@ <h2>Releases</h2>
                        title="Get magnet link for {{ item.version }}"><img width="12" height="12" src="{% static "magnet.png" %}" alt="Magnet"/></a>
                 {% endif %}</td>
                 <td>{{ item.release_date|date }}</td>
-                <td><a href="{{ item.get_absolute_url }}" title="Release details for {{ item.version }}">{{ item.version }}</a></td>
+                <td>{{ item.version }}</td>
                 <td>{{ item.kernel_version|default:"" }}</td>
                 <td class="available-{{ item.available|yesno }}">{{ item.available|yesno|capfirst }}</td>
                 <td>{% if item.torrent_data %}{{ item.torrent.file_length|filesizeformat }}{% endif %}</td>