state: remove /home from default state folders

Home should not always be set by default.
In the UI we can suggest it, but it catches a lot of state you might not
want to back up.

The default has been moved to be automatically set by vm's in `vm.nix`.

nixosModules/clanCore/state.nix

@@ -106,8 +106,6 @@
     );
   };
 
-  # defaults
-  config.clan.core.state.HOME.folders = [ "/home" ];
   config.environment.systemPackages = lib.optional (config.clan.core.state != { }) (
     pkgs.runCommand "state-commands" { } ''
       ${builtins.concatStringsSep "\n" (