libtirpc: stop dropping in NIS headers
libtirpc prior to 1.0.2 assumed that the system provided nis.h but this isn't
always true. Until now we've been using a tarball of the missing files from
Gentoo, but libtirpc 1.0.2 added a copy of nis.h to the sources so this isn't
required anymore.
(From OE-Core rev:
a6e786e7c8bed33fa269aac99724df606829ec6f)
Signed-off-by: Ross Burton <ross.burton@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
Signed-off-by: Armin Kuster <akuster808@gmail.com>
