flake: Remove nur

It was perhaps added manually, not sure if the overlay was actually useful to
anyone.

flake.lock

@@ -282,18 +282,6 @@
         "type": "github"
       }
     },
-    "nur": {
-      "locked": {
-        "lastModified": 0,
-        "narHash": "sha256-koC6DBYmLCrgXA+AMHVaODf1uHYPmvcFygHfy3eg6vI=",
-        "path": "/nix/store/6mfkswqi67m35qwv0vh7kpk8rypbl2rq-source",
-        "type": "path"
-      },
-      "original": {
-        "id": "nur",
-        "type": "indirect"
-      }
-    },
     "root": {
       "inputs": {
         "agenix": "agenix",
@@ -304,8 +292,7 @@
         "home": "home",
         "latest": "latest",
         "nixos": "nixos",
-        "nixos-hardware": "nixos-hardware",
-        "nur": "nur"
+        "nixos-hardware": "nixos-hardware"
       }
     },
     "utils": {

flake.nix

@@ -44,7 +44,6 @@
     nixos,
     home,
     nixos-hardware,
-    nur,
     agenix,
     deploy,
     ...
@@ -76,7 +75,6 @@
             our = self.lib;
           });
         })
-        nur.overlay
         agenix.overlays.default
 
         (import ./pkgs)