Do not show the notice anymore, since it's now not required to register the nickname

Requested by trovato.fabio@gmail.com on CAPoa-yrKcJ=XsG-R2auv4_=xiAeGGrrS+QswVj63q_+mN-OwOQ@mail.gmail.com on gruppo-web@liste.ubuntu-it.org
Signed-off-by: Mattia Rizzolo <mapreri@ubuntu.com>

www/index.html

@@ -136,7 +136,7 @@
 				// force reload the iframe, which was denied by security limits
 
 				function join(channel) {
-                    if (channel === "#ubuntu-it-chat" || channel == "#ubuntu-it") {
+                    if ((channel === "#ubuntu-it-chat" || channel == "#ubuntu-it") && false) {
                         $('#nicksrv-notice').show();
                     }