chore: cleanup flake

flake.nix

@@ -18,18 +18,13 @@
     crate2nix,
   }:
     flake-utils.lib.eachDefaultSystem (system: let
-      overlays = [(import rust-overlay)];
-      pkgs = import nixpkgs {inherit system overlays;};
-      isLinux = pkgs.lib.hasInfix "linux" system;
-
-      buildPkgs =
-        if isLinux
-        then pkgs.pkgsMusl
-        else pkgs;
+      pkgs = import nixpkgs {
+        inherit system;
+        overlays = [(import rust-overlay)];
+      };
 
       rustToolchain = pkgs.rust-bin.stable.latest.default.override {
         extensions = ["rust-src" "clippy" "rustfmt"];
-        targets = pkgs.lib.optionals isLinux ["x86_64-unknown-linux-musl"];
       };
 
       generatedCargoNix = crate2nix.tools.${system}.generatedCargoNix {
@@ -37,8 +32,6 @@
         src = ./.;
       };
 
-      musliTarget = "x86_64-unknown-linux-musl";
-
       cargoNix = import generatedCargoNix {
         pkgs = pkgs;
       };