nfsroot-image: remove udev-extraconf
nfsroot-image: remove udev-extraconf

Since udev-extraconf disturbs regular imaging process without adding value,
remove udev from nfsroot image as it has been removed from usb-update image.

Signed-off-by: Jens Rehsack <69d49c504a9219a55b8be0f905e8fe3c32ffb57f@netbsd.org>

rdm-dev/meta-jens,rdm-dev/meta-jens,tobw/meta-jens,rdm-dev/meta-jens,tobw/meta-jens,tobw/meta-jens,rdm-dev/meta-jens,tobw/meta-jens