The Romanian electronic invoicing integration no longer keeps an old authentication error field that is no longer used. This cleanup reflects newer error handling and should have no visible impact on day-to-day users.

This commit removes the now unusued `l10n_ro_edi_oauth_error` field in `res.company` and `res.config.settings`, after an improvement on stable was made that changes how we save/log authentication error in romania.

Follow-up for: https://github.com/odoo/odoo/pull/187708
related-upgrade-PR: https://github.com/odoo/upgrade/pull/6930
related-opw: 4187186

An unused company country code field was removed from Malaysian reporting configuration. This is a minor cleanup that reduces unnecessary data fields and helps keep the system easier to maintain without changing day-to-day workflows.