fix: suppression de la page support qui n'a pas de systeme de mail sur Github

Author: mfaurel

src/php/confirmation.php

@@ -314,10 +314,6 @@
                   <a class="nav-link" href="sg-utilities.html">Class utilitaires</a>
                 </li>
 
-                <li class="nav-item common-nav-item">
-                  <a class="nav-link" href="sg-support.html">Support</a>
-                </li>
-
                 <li class="nav-item common-nav-item">
                   <a class="nav-link" href="sg-versions.html">Versions</a>
                 </li>