ca: use upstreamed step-mks-plugin

configs/ca.nix

@@ -1,7 +1,5 @@
 { config, lib, pkgs, ... }:
-let
+let cfg = config.services.xinCA;
-  cfg = config.services.xinCA;
-  stepKmsPlugin = pkgs.callPackage ../pkgs/step-kms-plugin.nix { };
 in with lib; {
   options = {
     services.xinCA = {
@@ -68,7 +66,7 @@ in with lib; {
     environment.sessionVariables = { STEPPATH = "/var/lib/step-ca"; };
     environment.systemPackages = with pkgs; [
       step-cli
-      stepKmsPlugin
+      step-kms-plugin
       opensc
       libressl
     ];

flake.nix

@@ -251,7 +251,6 @@
           };
           sliding-sync =
             pkgs.callPackage ./pkgs/sliding-sync.nix { inherit pkgs; };
-          step-kms-plugin = pkgs.callPackage ./pkgs/step-kms-plugin.nix { };
           tailscaleSystray =
             pkgs.callPackage ./pkgs/tailscale-systray.nix { inherit pkgs; };
           golink = pkgs.callPackage ./pkgs/golink.nix { inherit pkgs; };

pkgs/step-kms-plugin.nix

@@ -1,37 +0,0 @@
-{ lib, buildGoModule, fetchFromGitHub, pkg-config, pcsclite, softhsm, opensc
-, yubihsm-shell }:
-
-buildGoModule rec {
-  pname = "step-kms-plugin";
-  version = "0.7.0";
-
-  src = fetchFromGitHub {
-    owner = "smallstep";
-    repo = pname;
-    rev = "v${version}";
-    hash = "sha256-5oMkR997ZbPpOqazpyxEvLKbak7THAu855FC6a/Tr+4=";
-  };
-
-  vendorHash = "sha256-Zd2rZez5vP9uL5dolGHO8FR0ARoYP78amcakK/lKtdc=";
-
-  proxyVendor = true;
-
-  nativeBuildInputs = [ pkg-config ];
-
-  buildInputs = [ opensc pcsclite softhsm yubihsm-shell ];
-
-  ldflags = [
-    "-w"
-    "-s"
-    "-X github.com/smallstep/step-kms-plugin/cmd.Version=${version}"
-  ];
-
-  meta = with lib; {
-    description =
-      "step plugin to manage keys and certificates on cloud KMSs and HSMs";
-    homepage = "https://smallstep.com/cli/";
-    license = licenses.asl20;
-    maintainers = with maintainers; [ qbit ];
-    mainProgram = "step-kms-plugin";
-  };
-}