[Bug 206581] bxe_ioctl_nvram handler is faulty

[David Somayajulu]

>  https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=206581

This happens to be dead/unused code.  I have made a commit https://reviews.freebsd.org/rS298496 to delete it.

Thanks
David S (davidcs at freebsd.org)