staging: rtl8188eu: remove unused function parameter

rtw_usb_if1_init does not use its struct usb_device_id parameter.

Signed-off-by: Martin Kaiser <martin@kaiser.cx>
Link: https://lore.kernel.org/r/20210328175446.28063-1-martin@kaiser.cx


Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>