tier-1: Strip out various things not in ELN

We won't ship things not in ELN.

tier-1/dnf.yaml

@@ -2,4 +2,3 @@
 # `dnf update` *client side* doesn't do much helpful...
 packages:
   - dnf
-  - dnf-utils

tier-1/manifest.yaml

@@ -16,7 +16,6 @@ include:
 packages:
   # Include and set the default editor
   - nano
-  - fuse-overlayfs slirp4netns
   # Minimal NFS client
   - nfs-utils-coreos
   # Additional firewall support; we aren't including these in RHCOS or they
@@ -35,8 +34,6 @@ packages:
   - lsof
   # Provides terminal tools like clear, reset, tput, and tset
   - ncurses
-  # Improved MOTD experience
-  - console-login-helper-messages-motdgen
   # i18n
   - kbd
   # zram-generator (but not zram-generator-defaults) for F33 change

tier-1/system-configuration.yaml

@@ -27,4 +27,3 @@ packages:
   # Boost starving threads
   # https://github.com/coreos/fedora-coreos-tracker/issues/753
   - stalld
-  - ssh-key-dir

tier-1/user-experience.yaml

@@ -22,9 +22,6 @@ packages:
   - tar
   - xz
   - zstd
-  # Improved MOTD experience
-  - console-login-helper-messages-issuegen
-  - console-login-helper-messages-profile
   # kdump support
   # https://github.com/coreos/fedora-coreos-tracker/issues/622
   - kexec-tools