chore(sourcehut): remove all traces of custom cacert package fuckery

I found out that you can set an env variable to make python's request
use the global cert store, this sidesteps the issue I have been having
with sourcehut.

nixos/configuration.nix

@@ -2,12 +2,12 @@
 # your system.  Help is available in the configuration.nix(5) man page
 # and in the NixOS manual (accessible by running ‘nixos-help’).
 
-{ pkgs, nixpkgsWithPatchedCACert, ... }:
+{ pkgs, ... }:
 {
   imports =
     [ # Include the results of the hardware scan.
       ./hardware-configuration.nix
-      (import ./sourcehut.nix { pkgs = nixpkgsWithPatchedCACert; })
+      ./sourcehut.nix
     ];
 
   # Bootloader.

nixos/flake.nix

@@ -7,20 +7,14 @@
     };
   };
   outputs = { nixpkgs, nixos-06cb-009a-fingerprint-sensor, ... }: 
-  let
-    nixpkgsWithPatchedCACert = nixpkgs.override (import ./overlays/cacert.nix);
-  in
   {
     nixosConfigurations.nixos = nixpkgs.lib.nixosSystem {
       system = "x86_64-linux";
       modules = [
         ./configuration.nix
-        #(let nixpkgs = nixpkgsWithPatchedCACert; in ./sourcehut.nix)
-        #(import ./sourcehut.nix { nixpkgs = nixpkgsWithPatchedCACert; })
         nixos-06cb-009a-fingerprint-sensor.nixosModules.open-fprintd
         nixos-06cb-009a-fingerprint-sensor.nixosModules.python-validity
       ];
-      extraArgs = { inherit nixpkgsWithPatchedCACert; };
     };
   };
 }