PCI: rcar: Remove unused platform data

The rcar driver never uses the platform drvdata pointer, so don't bother
setting it.  No functional change intended.
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Simon Horman <horms+renesas@verge.net.au>

drivers/pci/host/pcie-rcar.c

@@ -1136,7 +1136,6 @@ static int rcar_pcie_probe(struct platform_device *pdev)
 		return -ENOMEM;
 
 	pcie->dev = dev;
-	platform_set_drvdata(pdev, pcie);
 
 	INIT_LIST_HEAD(&pcie->resources);