[FIX] point_of_sale: Product description missing on invoice via POS

Steps to reproduce the bug:

- Create a product and fill in a description for that product
(in Sales app, on Sales tab --> description for the client)
- Sell the product via POS
- Create an invoice via POS

Bug:

The customer description didn't appear in the invoice line.

opw:1771302

closes odoo/odoo#34869

Signed-off-by: Simon Goffin (sig) <sig@openerp.com>

addons/point_of_sale/models/pos_order.py

@@ -236,7 +236,7 @@ class PosOrder(models.Model):
         # We convert a new id object back to a dictionary to write to
         # bridge between old and new api
         inv_line = invoice_line._convert_to_write({name: invoice_line[name] for name in invoice_line._cache})
-        inv_line.update(price_unit=line.price_unit, discount=line.discount, name=inv_name)
+        inv_line.update(price_unit=line.price_unit, discount=line.discount)
         return InvoiceLine.sudo().create(inv_line)
 
     def _create_account_move_line(self, session=None, move=None):