refactor: simplify pos_role selection definition by removing redundant field options

models/hr_employee.py

@@ -16,9 +16,4 @@ class HrEmployee(models.Model):
 class HrEmployeePublic(models.Model):
     _inherit = 'hr.employee.public'
 
-    pos_role = fields.Selection([
-        ('waiter', 'Server'),
-        ('cashier', 'Cashier'),
-        ('outlet_manager', 'Outlet Manager'),
-        ('area_manager', 'Area Manager')
-    ], string='POS Role', related='employee_id.pos_role', readonly=True)
+    pos_role = fields.Selection(related='employee_id.pos_role', readonly=True)