[13.0] [FIX] sale_order_type_ux: Fixz a bug when create and invoice from a SO with sale type.
[13.0] [FIX] sale_order_type_ux: Fixz a bug when create and invoice from a SO with sale type.

We remove the redefinition of the field sale_type_id because the field in v13 is computed and it's readonly=False by default, due this it's not necessary this change.
In addition, it causes the sale_type_id field in the invoice not to be completed.

ingadhoc/sale,ingadhoc/sale,ingadhoc/sale,ingadhoc/sale