Remove Beast subtree in preparation for git-subtree add

src/beast/examples/websocket_example.cpp

@@ -1,35 +0,0 @@
-//
-// Copyright (c) 2013-2016 Vinnie Falco (vinnie dot falco at gmail dot com)
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-
-#include <beast/core/to_string.hpp>
-#include <beast/websocket.hpp>
-#include <boost/asio.hpp>
-#include <iostream>
-#include <string>
-
-int main()
-{
-    // Normal boost::asio setup
-    std::string const host = "echo.websocket.org";
-    boost::asio::io_service ios;
-    boost::asio::ip::tcp::resolver r{ios};
-    boost::asio::ip::tcp::socket sock{ios};
-    boost::asio::connect(sock,
-        r.resolve(boost::asio::ip::tcp::resolver::query{host, "80"}));
-
-    // WebSocket connect and send message using beast
-    beast::websocket::stream<boost::asio::ip::tcp::socket&> ws{sock};
-    ws.handshake(host, "/");
-    ws.write(boost::asio::buffer("Hello, world!"));
-
-    // Receive WebSocket message, print and close using beast
-    beast::streambuf sb;
-    beast::websocket::opcode op;
-    ws.read(op, sb);
-    ws.close(beast::websocket::close_code::normal);
-    std::cout << to_string(sb.data()) << "\n";
-}