test: remove unref in http2 test · nodejs/node@0b0370f

});

pipeline(rs, req, common.mustCall((err) => {

// TODO: this is working around an http2 bug

// where the client keeps the event loop going

// (replacing the rs.destroy() with req.end()

// exits it so seems to be a destroy bug there

client.unref();

server.close();

client.close();

}));