staging: r8188eu: remove hal_reset_security_engine from struct hal_ops

Remove hal_reset_security_engine function pointer from struct hal_ops,
as it is unused.

Reviewed-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Phillip Potter <phil@philpotter.co.uk>
Link: https://lore.kernel.org/r/20210906010106.898-3-phil@philpotter.co.uk


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