PCI: tegra: Remove unused platform data

The tegra 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/pci-tegra.c

@@ -2266,7 +2266,6 @@ static int tegra_pcie_probe(struct platform_device *pdev)
 			dev_err(dev, "failed to setup debugfs: %d\n", err);
 	}
 
-	platform_set_drvdata(pdev, pcie);
 	return 0;
 
 disable_msi: