[FIX] stock: drop useless access rights "reduction" for manager
[FIX] stock: drop useless access rights "reduction" for manager

As a stock manager has anyway implied access rights from the user who
has all rights for stock.production.lot
ygol/odoo,ygol/odoo,ygol/odoo,ygol/odoo,ygol/odoo,ygol/odoo,ygol/odoo