inetutils: remove unused patch files

* they were removed from SRC_URI in:
  https://git.openembedded.org/openembedded-core/commit/?id=a21e8fdf1b66961ddae5929d393daa08800bb748



Signed-off-by: Martin Jansa <Martin.Jansa@gmail.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
(cherry picked from commit e2030f2a)
Signed-off-by: Steve Sakoman <steve@sakoman.com>