buildroot

ndisc6: patch no longer required

Now that we have 0001-remove-__FAVOR_BSD.patch in uClibc-ng (which is
upstream and will be part of uClibc-ng 1.0.26), we no longer need the
work-around patch in the ndisc6 package.

Signed-off-by: Waldemar Brodkorb <wbx@openadk.org>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>