[IMP] stock: clean up commit calls and add logs

the deleted commit is not needed since it's already called in
`_procure_orderpoint_confirm`.

The logs are usefull to check whether we have progress on repeating the
scheduler that gives timeout error.

closes odoo/odoo#75146

Signed-off-by: William Henrotin <Whenrow@users.noreply.github.com>