chore: Update to 2021 edition (#1188)

tests/integration_tests/Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 authors = ["Lucio Franco <[email protected]>"]
-edition = "2018"
+edition = "2021"
 license = "MIT"
 name = "integration-tests"
 publish = false

tests/integration_tests/tests/connect_info.rs

@@ -51,8 +51,6 @@ async fn getting_connect_info() {
 
 #[cfg(unix)]
 pub mod unix {
-    use std::convert::TryFrom as _;
-
     use futures_util::FutureExt;
     use tokio::{
         net::{UnixListener, UnixStream},

tests/integration_tests/tests/status.rs

@@ -6,7 +6,6 @@ use integration_tests::pb::{
     test_client, test_server, test_stream_client, test_stream_server, Input, InputStream, Output,
     OutputStream,
 };
-use std::convert::TryFrom;
 use std::error::Error;
 use std::time::Duration;
 use tokio::sync::oneshot;