feat: simplify devshell

Signed-off-by: Brian McGee <[email protected]>

nix/devshells/default.nix

@@ -3,17 +3,12 @@
   perSystem,
   ...
 }:
-perSystem.self.treefmt.overrideAttrs (old: {
-  GOROOT = "${old.go}/share/go";
+pkgs.mkShellNoCC {
+  env.GOROOT = "${pkgs.go}/share/go";
 
-  shellHook = ''
-    # this is only needed for hermetic builds
-    unset GO_NO_VENDOR_CHECKS GOSUMDB GOPROXY GOFLAGS
-  '';
-
-  nativeBuildInputs =
-    old.nativeBuildInputs
-    ++ (with pkgs; [
+  packages =
+    (with pkgs; [
+      go
       goreleaser
       golangci-lint
       delve
@@ -23,7 +18,6 @@ perSystem.self.treefmt.overrideAttrs (old: {
       enumer
       perSystem.gomod2nix.default
     ])
-    ++
-    # include formatters for development and testing
+    ++ # include formatters for development and testing
     (import ../packages/treefmt/formatters.nix pkgs);
-})
+}