Revert "packages/nixos: add IMDS setup script"

This reverts commit 5f0f680.

packages/by-name/cloud-api-adaptor/package.nix

@@ -10,9 +10,6 @@
   writeShellApplication,
   gnugrep,
   iptables,
-  iproute2,
-  sysctl,
-  gawk,
   runCommand,
   applyPatches,
   makeWrapper,
@@ -106,22 +103,6 @@ buildGoModule rec {
         "SC2153"
       ];
     };
-
-    setup-nat-for-imds = writeShellApplication {
-      name = "setup-nat-for-imds";
-      runtimeInputs = [
-        iproute2
-        iptables
-        sysctl
-        gawk
-      ];
-      # TODO(burgerdev): generalize for all link-local IPs and investigate routing simplification
-      text = builtins.readFile "${cloud-api-adaptor.src}/src/cloud-api-adaptor/podvm/files/usr/local/bin/setup-nat-for-imds.sh";
-      meta = {
-        mainProgram = "setup-nat-for-imds";
-        homepage = "https://github.com/confidential-containers/cloud-api-adaptor/blob/main/src/cloud-api-adaptor/podvm/files/usr/local/bin/setup-nat-for-imds.sh";
-      };
-    };
   };
 
   meta = {

packages/nixos/azure.nix

@@ -87,25 +87,5 @@ in
         ExecStart = "${lib.getExe pkgs.azure-no-agent}";
       };
     };
-
-    systemd.services.setup-nat-for-imds = {
-      wantedBy = [ "multi-user.target" ];
-      requires = [ "[email protected]" ];
-      wants = [ "network-online.target" ];
-      after = [
-        "network-online.target"
-        "[email protected]"
-      ];
-      description = "Setup NAT for IMDS";
-      serviceConfig = {
-        Type = "oneshot";
-        RemainAfterExit = "yes";
-        # TODO(msanft): Find out why just ordering this after network-online.target
-        # isn't sufficient. (Errors with saying that the network is unreachable)
-        Restart = "on-failure";
-        RestartSec = "5s";
-        ExecStart = "${lib.getExe pkgs.cloud-api-adaptor.setup-nat-for-imds}";
-      };
-    };
   };
 }