Revert "flake: add temp fix for broken PAM in unstable"

This reverts commit d5813bfdb6.

No longer necessary!

flake.lock

@@ -100,22 +100,6 @@
         "type": "indirect"
       }
     },
-    "nixpkgs-fixed-pam": {
-      "locked": {
-        "lastModified": 1643302241,
-        "narHash": "sha256-cEIhdgbUkiptcSAZ52iuXvG72WNv6m4pR3Y4Lf8mP9s=",
-        "owner": "NixOS",
-        "repo": "nixpkgs",
-        "rev": "ffdadd3ef9167657657d60daf3fe0f1b3176402d",
-        "type": "github"
-      },
-      "original": {
-        "owner": "NixOS",
-        "repo": "nixpkgs",
-        "rev": "ffdadd3ef9167657657d60daf3fe0f1b3176402d",
-        "type": "github"
-      }
-    },
     "nixpkgs-unstable-small": {
       "locked": {
         "lastModified": 1644225686,
@@ -156,7 +140,6 @@
         "home-manager": "home-manager",
         "nixos-hardware": "nixos-hardware",
         "nixpkgs": "nixpkgs_2",
-        "nixpkgs-fixed-pam": "nixpkgs-fixed-pam",
         "nixpkgs-unstable-small": "nixpkgs-unstable-small"
       }
     }

flake.nix

@@ -15,13 +15,6 @@
       ref = "nixos-unstable-small";
     };
 
-    nixpkgs-fixed-pam = {
-      type = "github";
-      owner = "NixOS";
-      repo = "nixpkgs";
-      rev = "ffdadd3ef9167657657d60daf3fe0f1b3176402d";
-    };
-
     agenix = {
       type = "github";
       owner = "ryantm";
@@ -88,9 +81,6 @@
               config.allowUnfree = true;
             };
 
-            i3lock-color = super.i3lock-color.override {
-              pam = (import inputs.nixpkgs-fixed-pam { inherit system; }).pam;
-            };
           })
 
           agenix.overlay