[IMP] website: SEO dialog, remove trach icon in th (it's not clickable)

addons/website/static/src/xml/website.seo.xml

@@ -109,7 +109,7 @@
                         <th class="text-center" title="Used in page description">D</th>
                         <th class="text-center" title="Used in page content">C</th>
                         <th title="Most searched topics related to your keyword, ordered by importance">Related keywords</th>
-                        <th class="text-center"><i class="fa fa-trash" title="Remove"/></th>
+                        <th class="text-center"></th>
                     </tr>
                 </thead>
                 <!-- body inserted in JS -->