clanService/paperless: drop psycopg test workaround

The test_stats_connect override was a stopgap for nixpkgs#494510, fixed
upstream in #494536. It forced a rebuild of the whole python package set
(psycopg -> pytest-postgresql -> sqlframe -> narwhals -> scikit-learn),
which broke on a flaky scikit-learn test.

flake.lock

@@ -752,11 +752,11 @@
     },
     "nixpkgs_3": {
       "locked": {
-        "lastModified": 1781359544,
+        "lastModified": 1788608636,
-        "narHash": "sha256-iUuzKQcyXvopYDDzFpMK5eQKP3WIJExYny2kJtbgUcE=",
+        "narHash": "sha256-RqeFOwW329f4i1f5QlJgQYwgEZvxIHJsUYlzIBxsKsY=",
         "owner": "nixos",
         "repo": "nixpkgs",
-        "rev": "e8be7818e19ada32105a8af937a6a473b38167ca",
+        "rev": "0af3d1402dec3fc7e93635e511d1f7428c89cebf",
         "type": "github"
       },
       "original": {

machines/sirius/configuration.nix

@@ -60,9 +60,7 @@
     };
   };
 
-  services.journald.extraConfig = ''
+  services.journald.settings.Journal.Storage = "none";
-    Storage=none
-  '';
 
   systemd = {
     coredump.enable = false;

modules/clan/paperless/default.nix

@@ -16,18 +16,6 @@
         ...
       }:
       {
-        nixpkgs.overlays = [
-          (final: prev: {
-            pythonPackagesExtensions = prev.pythonPackagesExtensions ++ [
-              (pyFinal: pyPrev: {
-                psycopg = pyPrev.psycopg.overrideAttrs (old: {
-                  disabledTests = old.disabledTests ++ [ "test_stats_connect" ];
-                });
-              })
-            ];
-          })
-        ];
-
         services.paperless = {
           enable = lib.mkDefault true;
         };