spi: s3c64xx: remove redundant pointer sci

The pointer sci is assigned but never read, hence it is redundant
and can be removed. Cleans up clang warning:

drivers/spi/spi-s3c64xx.c:791:2: warning: Value stored to 'sci' is
never read
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Mark Brown <broonie@kernel.org>

drivers/spi/spi-s3c64xx.c

@@ -752,7 +752,6 @@ static int s3c64xx_spi_setup(struct spi_device *spi)
 {
 	struct s3c64xx_spi_csinfo *cs = spi->controller_data;
 	struct s3c64xx_spi_driver_data *sdd;
-	struct s3c64xx_spi_info *sci;
 	int err;
 
 	sdd = spi_master_get_devdata(spi->master);
@@ -788,8 +787,6 @@ static int s3c64xx_spi_setup(struct spi_device *spi)
 		spi_set_ctldata(spi, cs);
 	}
 
-	sci = sdd->cntrlr_info;
-
 	pm_runtime_get_sync(&sdd->pdev->dev);
 
 	/* Check if we can provide the requested rate */