remove comment about v12 migration

stock/models.py

@@ -95,23 +95,6 @@ class CagetteStock(models.Model):
                 }
             ])
 
-            # Add stock.pack.operation to stock.picking (field no more exists)
-            # fields['pack_operation_ids'].append([
-            #     0,
-            #     False,
-            #     {
-            #       "product_qty": str(qty),
-            #       "qty_done": str(qty),
-            #       "location_id": settings.STOCK_LOC_ID,
-            #       "location_dest_id": destination,
-            #       "product_id": p['id'],
-            #       "name": p['name'],
-            #       "product_uom_id": p['uom_id'],
-            #       "state": 'done',
-            #       "fresh_record": False
-            #     }
-            # ])
-
         # Exception rises when odoo method returns nothing
         marshal_none_error = 'cannot marshal None unless allow_none is enabled'
         try: