PCI: hisi: Remove unused platform data

The hisi 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>

drivers/pci/host/pcie-hisi.c

@@ -210,8 +210,6 @@ static int hisi_pcie_probe(struct platform_device *pdev)
 	if (ret)
 		return ret;
 
-	platform_set_drvdata(pdev, hisi_pcie);
-
 	dev_warn(dev, "only 32-bit config accesses supported; smaller writes may corrupt adjacent RW1C fields\n");
 
 	return 0;