not needed check for gorm.ErrRecordNotFound in Update()

[to6ka]

218     if err := db.Model(o).Updates(u).Error; err != nil {
219         if err == gorm.ErrRecordNotFound {
220             return err
221         }
222 
223         return fmt.Errorf("can't update Entry %v fields %v: %s",
224             o, fields, err)
225     }

gorm will never return this error from Update()