feat(mioudp): don't exit on "exit"

Author: mkroening

examples/mioudp/src/main.rs

@@ -1,7 +1,6 @@
 //! Adapted from <https://github.com/tokio-rs/mio/blob/c9831c78d14fd54c41bab79f5347764a56dc8326/examples/udp_server.rs>.
 
 use std::io;
-use std::str::from_utf8;
 
 #[cfg(target_os = "hermit")]
 use hermit as _;
@@ -63,11 +62,6 @@ fn main() -> io::Result<()> {
 						Ok((packet_size, source_address)) => {
 							// Echo the data.
 							socket.send_to(&buf[..packet_size], source_address)?;
-							if let Ok(str_buf) = from_utf8(&buf[..packet_size]) {
-								if str_buf.trim_end() == "exit" {
-									return Ok(());
-								}
-							}
 						}
 						Err(e) if e.kind() == io::ErrorKind::WouldBlock => {
 							// If we get a `WouldBlock` error we know our socket