Port TLS examples off futures

Author: skade

examples/client/Cargo.toml

@@ -5,7 +5,6 @@ authors = ["quininer <quininer@live.com>"]
 edition = "2018"
 
 [dependencies]
-futures-preview = "0.3.0-alpha.17"
 async-std = { path = "../../../async-std" }
 structopt = "0.2"
 async-tls = { path = "../.." }

examples/client/src/main.rs

@@ -1,12 +1,13 @@
 #![feature(async_await)]
 
 use async_std::io;
+use async_std::io::Write;
 use async_std::net::TcpStream;
 use async_std::task;
 use async_tls::TlsConnector;
-use futures::io::AsyncWriteExt;
 use std::net::ToSocketAddrs;
 use structopt::StructOpt;
+
 #[derive(StructOpt)]
 struct Options {
     /// The host to connect to

examples/server/Cargo.toml

@@ -5,7 +5,6 @@ authors = ["quininer <quininer@live.com>"]
 edition = "2018"
 
 [dependencies]
-futures-preview = "0.3.0-alpha.17"
 structopt = "0.2"
 async-tls = { path = "../.." }
 async-std = { path = "../../../async-std" }

examples/server/src/main.rs

@@ -1,10 +1,11 @@
 #![feature(async_await)]
 
 use async_std::io;
+use async_std::io::Write;
 use async_std::net::{TcpListener, TcpStream};
+use async_std::stream::Stream;
 use async_std::task;
 use async_tls::TlsAcceptor;
-use futures::prelude::*;
 use rustls::internal::pemfile::{certs, rsa_private_keys};
 use rustls::{Certificate, NoClientAuth, PrivateKey, ServerConfig};
 use std::fs::File;