feat: ofm-models fix bug

apps/ofm/models.py

@@ -73,9 +73,6 @@ class VehicleUse(CommonBDModel):
             self.end_km = int(self.end_km)
             if self.start_km <= self.end_km:
                 self.actual_km = self.end_km - self.start_km
-                with transaction.atomic():
-                    super().save(*args, **kwargs)
-                    VehicleReg.objects.filter(id=self.vehiclereg.id).update(km=self.end_km)
             else:
                 raise ParseError('归还公里数不能小于出发公里数')
         else: