[IMP] SO form view cleaning

- Task: https://www.odoo.com/web#id=10849&view_type=form&model=project.task&action=333&active_id=248
- Pad: https://pad.odoo.com/p/r.6W3CqGJNCRxb5wQC
Group `technical` has already `groups="base.group_no_one"` so I don't think you have to put it on the fields