video: intelfb: remove unnecessary pci_set_drvdata()

The driver core clears the driver data to NULL after device_release
or on probe failure. Thus, it is not needed to manually clear the
device driver data to NULL.

Signed-off-by: Jingoo Han <[e-mail]>
Signed-off-by: Tomi Valkeinen <[e-mail]>

drivers/video/intelfb/intelfbdrv.c

···
 		return;
 
 	cleanup(dinfo);
-
-	pci_set_drvdata(pdev, NULL);
 }
 
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