build: remove bazel dev shells

.envrc

@@ -1 +0,0 @@
-use flake

flake.nix

@@ -77,30 +77,7 @@
 
   outputs =
     { self, nixpkgs, ... }@inputs:
-    let
-      system = "x86_64-linux";
-      pkgs = nixpkgs.legacyPackages.${system};
-
-      pkgsDefault = [ pkgs.bazel ];
-      pkgsRust = with pkgs; [
-        cargo
-        clippy
-        rust-analyzer
-        rustc
-        rustfmt
-      ];
-
-      mkShell = packages:
-        pkgs.mkShell {
-          packages = pkgsDefault ++ packages;
-        };
-    in
     {
-      devShells.${system} = {
-        default = mkShell [ ];
-        rust = mkShell pkgsRust;
-      };
-
       nixosConfigurations = (import ./src/dotfiles {
         inherit inputs self;
         lib = nixpkgs.lib;

src/machoke/.envrc

@@ -1 +0,0 @@
-use flake //#rust