spi/s3c24xx: remove unnecessary memset of s3c24xx_spi

Memory for this struct is allocated by spi_alloc_master() using
kzalloc() so it doesn't need to be set to 0 one more time.

Signed-off-by: Alexey Klimov <klimov.linux@gmail.com>
Reviewed-by: Daniel Kurtz <djkurtz@chromium.org>
Signed-off-by: Mark Brown <broonie@kernel.org>

drivers/spi/spi-s3c24xx.c

@@ -501,7 +501,6 @@ static int s3c24xx_spi_probe(struct platform_device *pdev)
 	}
 
 	hw = spi_master_get_devdata(master);
-	memset(hw, 0, sizeof(struct s3c24xx_spi));
 
 	hw->master = master;
 	hw->pdata = pdata = dev_get_platdata(&pdev->dev);