nixos-module/server/lxc-containers: undo making container startup conditional

nix/nixos-module/server/lxc-containers.nix

@@ -138,15 +138,6 @@ let
     set -e
   '';
 
-  enable-script = pkgs.writeScriptBin "enable-containers" ''
-    touch /etc/start-containers
-    systemctl start lxc-containers.target
-  '';
-
-  disable-script = pkgs.writeScriptBin "disable-containers" ''
-    rm /etc/start-containers
-    systemctl stop lxc-containers.target lxc@\*.service
-  '';
 in
 {
   boot.kernel.sysctl = lib.mkIf enabled {
@@ -173,7 +164,6 @@ in
     # `lxc-attach` et al
     pkgs.lxc build-script
     # User scripts
-    enable-script disable-script
   ];
 
   # Create lxc.container.conf files
@@ -227,7 +217,6 @@ in
     after = [ "network.target" ];
     unitConfig.ConditionPathExists = [
       "/var/lib/lxc/%i/rootfs/init"
-      "/etc/start-containers"
     ];
     serviceConfig = with pkgs; {
       Type = "simple";