Start porting nixy config, move some bootloader stuff into the common bootloader.nix.

nodes/hosts/lappy/system/bootloader.nix

@@ -4,11 +4,6 @@
       useTmpfs = true;
       tmpfsSize = "50%";
     };
-    loader = {
-      systemd-boot.enable = true;
-      efi.canTouchEfiVariables = true;
-    };
-    kernelPackages = pkgs.linuxPackages_xanmod_stable;
     kernelModules = [ "kvm-intel" ];
     extraModulePackages = with config.boot.kernelPackages; [ xpadneo ];
     extraModprobeConfig = '' options bluetooth disable_ertm=1 '';