Revert "xhci: plat: Register shutdown for xhci_plat"

This reverts commit ff1ddbb3.

Bug: 74147717
Change-Id: I47fc9511049d93597fcb65d7c541f22554de6f8f
Signed-off-by: Badhri Jagan Sridharan <badhri@google.com>

drivers/usb/host/xhci-plat.c

@@ -408,7 +408,6 @@ MODULE_DEVICE_TABLE(acpi, usb_xhci_acpi_match);
 static struct platform_driver usb_xhci_driver = {
 	.probe	= xhci_plat_probe,
 	.remove	= xhci_plat_remove,
-	.shutdown	= usb_hcd_platform_shutdown,
 	.driver	= {
 		.name = "xhci-hcd",
 		.pm = DEV_PM_OPS,