No dispositivo iOS 11, a exclusão de um fundo branco inesperado do UITableViewCell aparece por algum motivo, no entanto, todas as cores de fundo são definidas em azul no storyboard (funciona bem no iOS10).

- (void)tableView:(UITableView *)tableView commitEditingStyle:(UITableViewCellEditingStyle)editingStyle forRowAtIndexPath:(NSIndexPath *)indexPath
{
    if (editingStyle == UITableViewCellEditingStyleDelete)
    {
        [self.bookmarks removeObjectAtIndex:indexPath.row];            
        [self.tableView deleteRowsAtIndexPaths:@[indexPath] withRowAnimation:UITableViewRowAnimationFade];
    }
}

Tentei todos os tipos deUITableViewRowAnimation, não resolve o problema.