Companion for Taskmanager: Remove clean_shutdown (#4336)

* Companion for Taskmanager: Remove `clean_shutdown`

https://github.com/paritytech/substrate/pull/10314

* Update Substrate

* Remove warning

polkadot/node/test/service/tests/build-blocks.rs

@@ -52,7 +52,4 @@ async fn ensure_test_service_build_blocks() {
 			_ = t3 => panic!("service Bob failed"),
 		}
 	}
-
-	alice.task_manager.clean_shutdown().await;
-	bob.task_manager.clean_shutdown().await;
 }

polkadot/node/test/service/tests/call-function.rs

@@ -35,6 +35,4 @@ async fn call_function_actually_work() {
 	let result = object.get("result");
 	let result = result.expect("key result exists");
 	assert_eq!(result.as_str().map(|x| x.starts_with("0x")), Some(true), "result starts with 0x");
-
-	alice.task_manager.clean_shutdown().await;
 }

polkadot/parachain/test-parachains/adder/collator/tests/integration.rs

@@ -22,7 +22,6 @@ const PUPPET_EXE: &str = env!("CARGO_BIN_EXE_adder_collator_puppet_worker");
 // If this test is failing, make sure to run all tests with the `real-overseer` feature being enabled.
 #[substrate_test_utils::test]
 async fn collating_using_adder_collator() {
-	use futures::join;
 	use polkadot_primitives::v1::Id as ParaId;
 	use sp_keyring::AccountKeyring::*;
 
@@ -80,10 +79,4 @@ async fn collating_using_adder_collator() {
 
 	// Wait until the collator received `12` seconded statements for its collations.
 	collator.wait_for_seconded_collations(12).await;
-
-	join!(
-		alice.task_manager.clean_shutdown(),
-		bob.task_manager.clean_shutdown(),
-		charlie.task_manager.clean_shutdown(),
-	);
 }