staging: rtl8723bs: remove header rtw_ioctl.h

Nothing from the header rtw_ioctl.h is used in the driver code.
Remove the header.

Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Michael Straube <straube.linux@gmail.com>
Link: https://lore.kernel.org/r/20220408081956.1093-1-straube.linux@gmail.com


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