Merge pull request #114616 from bobrik/ivan/grpcio-darwin

python3Packages.grpcio: remove cctools from build inputs

pkgs/development/python-modules/grpcio/default.nix

···
 { lib, stdenv
 , buildPythonPackage
-, darwin
 , grpc
 , six
 , protobuf
···
 
   outputs = [ "out" "dev" ];
 
-  nativeBuildInputs = [ cython pkg-config ]
-    ++ lib.optional stdenv.isDarwin darwin.cctools;
+  nativeBuildInputs = [ cython pkg-config ];
 
   buildInputs = [ c-ares openssl zlib ];
   propagatedBuildInputs = [ six protobuf ]