flake: drop devshell

.envrc

@@ -1,4 +0,0 @@
-watch_file flake.nix
-
-use flake
-

flake.nix

@@ -7,12 +7,6 @@
   in {
     nixosConfigurations = import ./hosts inputs;
 
-    devShells =
-      lib.mapAttrs (system: pkgs: {
-        default = pkgs.callPackage ./shell.nix {};
-      })
-      pkgsFor;
-
     formatter = eachSystem (system: pkgsFor.${system}.alejandra);
 
     packages =

shell.nix

@@ -1,21 +0,0 @@
-{
-  mkShellNoCC,
-  git,
-  writeShellApplication,
-}:
-mkShellNoCC {
-  name = "nichts";
-
-  DIRENV_LOG_FORMAT = "";
-
-  packages = [
-    git # take a guess
-
-    (writeShellApplication {
-      name = "update";
-      text = ''
-        nix flake update && git commit flake.lock -m "flake: bump inputs"
-      '';
-    })
-  ];
-}