xhci: clean up work to remove unused parameters for functions in xhci-mem.c

Some parameters are not used by functions in xhci-mem.c, just
remove it.

Changes compared to v1:
- Rebase to the latest usb-next branch

Signed-off-by: Lin Wang <lin.x.wang@intel.com>
Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
diff --git a/drivers/usb/host/xhci-dbg.c b/drivers/usb/host/xhci-dbg.c
index bb89175..745717e 100644
--- a/drivers/usb/host/xhci-dbg.c
+++ b/drivers/usb/host/xhci-dbg.c
@@ -552,7 +552,7 @@
 
 	if (ctx->type == XHCI_CTX_TYPE_INPUT) {
 		struct xhci_input_control_ctx *ctrl_ctx =
-			xhci_get_input_control_ctx(xhci, ctx);
+			xhci_get_input_control_ctx(ctx);
 		if (!ctrl_ctx) {
 			xhci_warn(xhci, "Could not get input context, bad type.\n");
 			return;