staging: r8188eu: remove unused function parameter

The regs parameter of the usb_write_port_complete function is not used. We
can remove it.

We can also remove the macro to hide the regs parameter when
usb_write_port_complete is used as callback function for an urb transfer.
Signed-off-by: Martin Kaiser <martin@kaiser.cx>
Tested-by: Philipp Hortmann <philipp.g.hortmann@gmail.com> # Edimax N150
Link: https://lore.kernel.org/r/20230110205626.183516-4-martin@kaiser.cxSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/r8188eu/include/usb_ops_linux.h

@@ -19,8 +19,6 @@
 	usb_bulkout_zero_complete(purb)
 #define usb_write_mem_complete(purb, regs)		\
 	usb_write_mem_complete(purb)
-#define usb_write_port_complete(purb, regs)		\
-	usb_write_port_complete(purb)
 #define usb_read_port_complete(purb, regs)		\
 	usb_read_port_complete(purb)
 #define usb_read_interrupt_complete(purb, regs)		\

drivers/staging/r8188eu/os_dep/usb_ops_linux.c

@@ -35,7 +35,7 @@ void rtw_read_port_cancel(struct adapter *padapter)
 	}
 }
 
-static void usb_write_port_complete(struct urb *purb, struct pt_regs *regs)
+static void usb_write_port_complete(struct urb *purb)
 {
 	struct xmit_buf *pxmitbuf = (struct xmit_buf *)purb->context;
 	struct adapter *padapter = pxmitbuf->padapter;