staging: rtl8723bs: remove unused field in rereg_nd_name_data struct

remove unused field old_ips_mode in struct rereg_nd_name_data

Signed-off-by: Fabio Aiuto <fabioaiuto83@gmail.com>
Link: https://lore.kernel.org/r/e47b4092f12c4930b7185ecdd59b1d0611dd09e7.1616854134.git.fabioaiuto83@gmail.com


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