ClientGlobal: move client_close_all() to ClientList.cxx

src/ClientList.cxx

@@ -29,26 +29,12 @@
 static std::list<Client *> clients;
 static unsigned num_clients;
 
-bool
-client_list_is_empty(void)
-{
-	return num_clients == 0;
-}
-
 bool
 client_list_is_full(void)
 {
 	return num_clients >= client_max_connections;
 }
 
-Client *
-client_list_get_first(void)
-{
-	assert(!clients.empty());
-
-	return clients.front();
-}
-
 void
 client_list_add(Client *client)
 {
@@ -74,3 +60,12 @@ client_list_remove(Client *client)
 	clients.erase(i);
 	--num_clients;
 }
+
+void
+client_list_close_all()
+{
+	while (!clients.empty())
+		clients.front()->Close();
+
+	assert(num_clients == 0);
+}