spi/s3c64xx: Remove unused message queue

 * @master: Pointer to the SPI Protocol master.

 * @cntrlr_info: Platform specific data for the controller this driver manages.

 * @tgl_spi: Pointer to the last CS left untoggled by the cs_change hint.

 * @queue: To log SPI xfer requests.

 * @lock: Controller specific lock.

 * @state: Set of FLAGS to indicate status.

 * @rx_dmach: Controller's DMA channel for Rx.

	struct spi_master               *master;

	struct s3c64xx_spi_info  *cntrlr_info;

	struct spi_device               *tgl_spi;

	struct list_head                queue;

	spinlock_t                      lock;

	unsigned long                   sfr_start;

	struct completion               xfer_completion;

	struct s3c64xx_spi_csinfo *cs = spi->controller_data;

	struct s3c64xx_spi_driver_data *sdd;

	struct s3c64xx_spi_info *sci;

	struct spi_message *msg;

	unsigned long flags;

	int err;

	sdd = spi_master_get_devdata(spi->master);

	sci = sdd->cntrlr_info;

	spin_lock_irqsave(&sdd->lock, flags);

	list_for_each_entry(msg, &sdd->queue, queue) {

		/* Is some mssg is already queued for this device */

		if (msg->spi == spi) {

			dev_err(&spi->dev,

				"setup: attempt while mssg in queue!\n");

			spin_unlock_irqrestore(&sdd->lock, flags);

			err = -EBUSY;

			goto err_msgq;

		}

	}

	spin_unlock_irqrestore(&sdd->lock, flags);

	pm_runtime_get_sync(&sdd->pdev->dev);

	/* Check if we can provide the requested rate */

	/* setup() returns with device de-selected */

	disable_cs(sdd, spi);

err_msgq:

	gpio_free(cs->line);

	spi_set_ctldata(spi, NULL);

	spin_lock_init(&sdd->lock);

	init_completion(&sdd->xfer_completion);

	INIT_LIST_HEAD(&sdd->queue);

	ret = devm_request_irq(&pdev->dev, irq, s3c64xx_spi_irq, 0,

				"spi-s3c64xx", sdd);