[secrets] Remove altogether

I'm standardizing on bitwarden and rbw for secrets. No need to build out
a separate secret management system. The complexity of this was just not
worth it for my effectively single-user workflows

roles/default.nix

@@ -10,7 +10,6 @@ with lib;
     ./kodi
     ./nfs-mounts
     ./printing
-    ./secrets
     ./spotifyd
     ./users
     ./virtualisation

roles/secrets/default.nix

@@ -1,8 +0,0 @@
-{ config, lib, pkgs, inputs, ... }:
-
-{
-  sops.defaultSopsFile = ../../secrets/secrets.yaml;
-  sops.defaultSopsFormat = "yaml";
-  sops.age.sshKeyPaths = [ "/etc/ssh/ssh_host_ed25519_key" "/home/johno/.ssh/id_ed25519" ];
-  sops.secrets.example_key = {};
-}