jenkins nodes: don't try to install a bookworm-backports kernel on infom08 which is running trixie

Signed-off-by: Holger Levsen <holger@layer-acht.org>

update_jdn.sh

@@ -683,7 +683,6 @@ if [ -f /etc/debian_version ] ; then
 		if [ "$HOSTNAME" = "ionos5-amd64" ] || [ "$HOSTNAME" = "ionos15-amd64" ] \
 			|| [ "$HOSTNAME" = "osuosl2-amd64" ] \
 			|| [ "$HOSTNAME" = "infom02-amd64" ] \
-			|| [ "$HOSTNAME" = "infom08-i386" ] \
 			|| [ "$HOSTNAME" = "jenkins" ] ; then
 			sudo apt install linux-image-amd64/bookworm-backports || true # backport kernels are frequently uninstallable...
 			: