Remove the MPD server and Six configuration from the IoT Box. MPD will be replaced by TIM, which doesn't require the IoT Box. closes odoo/odoo#46424 Taskid: 2188566 X-original-commit: 9d43308a8f6b521d3d18f7fc472303f58f56a0c3 Signed-off-by: Antoine Prieëls <aprieels@users.noreply.github.com>