secrets: move paperless secrets to agenix

secrets/default.nix

@@ -10,6 +10,5 @@ in {
   };
 
   config.my.secrets = {
-    paperless = import ./paperless { inherit lib; };
   };
 }

secrets/paperless/default.nix

@@ -1,10 +0,0 @@
-{ lib }:
-let
-  inherit (lib)
-    fileContents
-  ;
-in
-{
-  secretKey = fileContents ./secret-key-file.secret;
-  adminPassword = fileContents ./admin-password.secret;
-}