Remove UDP traits

The traits restrict the implementations too much on embedded devices.
Removing them now to avoid people committing to them, and instead
reintroduce them in a form that is more easily supported by drivers.

Author: Ulf Lilleengen

embedded-nal-async/CHANGELOG.md

@@ -10,7 +10,7 @@ and this project adheres to [Semantic Versioning](http://semver.org/).
 ## [0.2.0] - 2022-08-03
 
 TcpClient trait for creating shared async TCP/IP stack implementations.
-Remove TcpClientStack and TcpFullStack traits.
+Remove TcpClientStack, TcpFullStack and UDP traits pending traits that support shared use.
 
 ## [0.1.0] - 2022-05-04
 

embedded-nal-async/src/lib.rs

@@ -14,4 +14,4 @@ pub use no_std_net::{IpAddr, Ipv4Addr, Ipv6Addr, SocketAddr, SocketAddrV4, Socke
 
 pub use dns::Dns;
 pub use embedded_nal::AddrType;
-pub use stack::{TcpConnect, UdpClientStack, UdpFullStack};
+pub use stack::TcpConnect;

embedded-nal-async/src/stack/mod.rs

@@ -1,5 +1,3 @@
 mod tcp;
-mod udp;
 
 pub use tcp::TcpConnect;
-pub use udp::{UdpClientStack, UdpFullStack};