mmc: sh_mmcif: remove unnecessary platform_set_drvdata()

The driver core clears the driver data to NULL after device_release or on probe failure, since commit 0998d0631001288a5974afc0b2a5f568bcdecb4d (device-core: Ensure drvdata = NULL when no driver is bound). Thus, it is not needed to manually clear the device driver data to NULL.

---
 drivers/mmc/host/sh_mmcif.c |    2 --
 1 files changed, 0 insertions(+), 2 deletions(-)

index ba76a53..117a1f7 100644
@@ -1501,8 +1501,6 @@ static int sh_mmcif_remove(struct platform_device *pdev)
 	if (irq[1] >= 0)
 		free_irq(irq[1], host);
 
-	platform_set_drvdata(pdev, NULL);
-
 	clk_disable(host->hclk);
 	mmc_free_host(host->mmc);
 	pm_runtime_put_sync(&pdev->dev);

1.7.2.5