tier-x: Drop systemd-resolved

It's not desired by default in RHEL 10 or below yet, ref
https://issues.redhat.com/browse/RHEL-77077

AFAICS, it's already explicitly specified in the fedora-coreos manifest,
so dropping it here shouldn't affect FCOS.

Of course I think what we *really* want here is distribution
conditionals.

Signed-off-by: Colin Walters <walters@verbum.org>

tier-x/manifest.yaml

@@ -28,7 +28,6 @@ packages:
   - NetworkManager
   - openssh-clients
   - openssh-server
-  - systemd-resolved
   # linux-firmware now a recommends so let's explicitly include it
   # https://gitlab.com/cki-project/kernel-ark/-/commit/32271d0cd9bd52d386eb35497c4876a8f041f70b
   # https://src.fedoraproject.org/rpms/kernel/c/f55c3e9ed8605ff28cb9a922efbab1055947e213?branch=rawhide