silverblue: Blacklist setuptool

At some point I want to add a `usr_bin_sbin_unification: true`
option or so to rpm-ostree, and having `usermode` blocks that.

Also this is a weird legacy Red Hat-ism tool.

comps-sync-blacklist.yml

@@ -47,6 +47,10 @@ blacklist:
     # Why?
     - ncurses
     - mailcap
+    # This seems like some weird legacy thing, it also
+    # drags in usermode, which should also be deprecated
+    # and blocks a /usr/sbin + /usr/bin unification.
+    - setuptool
     # Really?
     - tcp_wrappers
     # This probably doesn't need to be default

fedora-common-ostree-pkgs.json

@@ -184,7 +184,6 @@
         "scl-utils",
         "selinux-policy-targeted",
         "setup",
-        "setuptool",
         "shadow-utils",
         "sil-abyssinica-fonts",
         "sil-mingzat-fonts",