Remove unnecessary semicolon

examples/httpclient.rs

@@ -55,7 +55,7 @@ fn main() {
     let mut sockets = SocketSet::new(vec![]);
     let tcp_handle = sockets.add(tcp_socket);
 
-    enum State { Connect, Request, Response };
+    enum State { Connect, Request, Response }
     let mut state = State::Connect;
 
     loop {