KVM : add XXX comments for future work

stack/kvm.cfg

@@ -25,20 +25,6 @@ extends =
 #            Websockify (socket <-> websocket proxy server) when it is ready.
 #            May solve previous XXX depending on the implementation.
 
-#XXX-Cedric: ALL MAJOR BROWSERS WORK WITH DOMAIN NAME (ie. not with raw IPV6)
-#            Note : internet explorer not tested.
-
-#XXX-Cedric: Check status of https://bugzilla.mozilla.org/show_bug.cgi?id=633001
-#            To see when firefox can add cert exceptions with ipv6 address.
-#            Until that, Firefox can't be used without frontend. Same for
-#            Safari : https://bugs.webkit.org/show_bug.cgi?id=70020.
-#            (solution : frontend)
-
-#XXX-Cedric: Safari : Check status of https://bugs.webkit.org/show_bug.cgi?id=66465
-#            to see if websocket can be used with ipv6 address.
-#            (solution : frontend)
-
-
 parts =
   template
   gnutls