menu.c: drop empty menu_cleanup()
Since migration to garcon, this function really just a no-op, so let's drop it.
Signed-off-by: Enrico Weigelt, metux IT consult info@metux.net
Since migration to garcon, this function really just a no-op, so let's drop it.
Signed-off-by: Enrico Weigelt, metux IT consult info@metux.net