mmc: dw_mmc: 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/dw_mmc-pltfm.c |    1 -
 1 files changed, 0 insertions(+), 1 deletions(-)

index 41c27b7..37873f1 100644
@@ -72,7 +72,6 @@ static int dw_mci_pltfm_remove(struct platform_device *pdev)
 {
 	struct dw_mci *host = platform_get_drvdata(pdev);
 
-	platform_set_drvdata(pdev, NULL);
 	dw_mci_remove(host);
 	return 0;
 }

1.7.2.5