flake.nix remove cargo-generate

flake.nix

@@ -25,14 +25,8 @@
       devShells = forEachSupportedSystem ({ pkgs }: {
         default = pkgs.mkShell.override { } {
           packages = with pkgs;
-            [
-              esp-idf-full
-              rustup
-              cargo-generate
-              openssl
-              stdenv.cc.cc.lib
-              libclang
-            ] ++ (if system == "aarch64-darwin" then [ ] else [ gdb ]);
+            [ esp-idf-full rustup openssl stdenv.cc.cc.lib libclang ]
+            ++ (if system == "aarch64-darwin" then [ ] else [ gdb ]);
           shellHook = ''
             export CLANGD_QUERY_DRIVER="$(which clang),$(which clang++)"
             export CMAKE_EXPORT_COMPILE_COMMANDS=1