fedora-container-toolbox: drop systemd

Since change 48e2c3b this kickstart
is pulling in systemd.

This was noticed because since
b5fc5fd started bringing in
weak-dependencies, we started installing systemd-resolved is which
created a symlinked /etc/resolv.conf in the image.  Toolbox will not
currently reset this on container start, as it is a symlink (this
behaviour is a bit complicated; see [1]).  This leads to an
incompatability running the toolbox on *non* systemd-resolved hosts
(e.g. RHEL9); you are left with a dangling symlink and no
name-resolution in the toolbox.

We do not want systemd in the toolbox image by default it; remove it
from the list.  Exclude systemd-resolved specifically, so if something
else brings in systemd we still don't include this.

[1] containers/toolbox#1410

https://pagure.io/fedora-kickstarts/pull-request/1027

fedora-container-toolbox.ks

@@ -82,7 +82,10 @@ shadow-utils
 -shared-mime-info
 -sssd-client
 sudo
-systemd
+# This is a weak dependency of systemd, we do not want
+# this in the container; see
+#  https://github.com/containers/toolbox/issues/1410
+-systemd-resolved
 tar # https://bugzilla.redhat.com/show_bug.cgi?id=1409920
 tcpdump
 time