usb: xhci-mvebu: use xhci_deregister() for .remove callback

No need to use a wrapper that is equivalent to xhci_deregister().

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>

drivers/usb/host/xhci-mvebu.c

@@ -56,11 +56,6 @@ static int xhci_usb_probe(struct udevice *dev)
 	return xhci_register(dev, ctx->hcd, hcor);
 }
 
-static int xhci_usb_remove(struct udevice *dev)
-{
-	return xhci_deregister(dev);
-}
-
 static int xhci_usb_ofdata_to_platdata(struct udevice *dev)
 {
 	struct mvebu_xhci_platdata *plat = dev_get_platdata(dev);
@@ -89,7 +84,7 @@ U_BOOT_DRIVER(usb_xhci) = {
 	.of_match = xhci_usb_ids,
 	.ofdata_to_platdata = xhci_usb_ofdata_to_platdata,
 	.probe = xhci_usb_probe,
-	.remove = xhci_usb_remove,
+	.remove = xhci_deregister,
 	.ops	= &xhci_usb_ops,
 	.platdata_auto_alloc_size = sizeof(struct mvebu_xhci_platdata),
 	.priv_auto_alloc_size = sizeof(struct mvebu_xhci),