Include the Configure ad-hoc command on biboumi's JID for fixed_irc_server

Because a jid like “freenode.example.org” is both the JID for the configured
IRC server, and biboumi’s JID.

fix #3175

louloulibs/xmpp/adhoc_command.cpp

@@ -11,10 +11,6 @@ AdhocCommand::AdhocCommand(std::vector<AdhocStep>&& callbacks, const std::string
 {
 }
 
-AdhocCommand::~AdhocCommand()
-{
-}
-
 bool AdhocCommand::is_admin_only() const
 {
   return this->admin_only;