test: remove log syncrhonization from nns recovery system test (#3602)

rs/http_endpoints/public/src/lib.rs

@@ -219,7 +219,6 @@ fn start_server_initialization(
             ])
             .inc();
         health_status.store(ReplicaHealthStatus::Healthy);
-        // TODO: NNS1-2024
         info!(log, "Ready for interaction.");
     });
 }

rs/tests/nns/ic_mainnet_nns_recovery/src/lib.rs

@@ -312,7 +312,9 @@ fn support_snses(
         recovered_nns_public_key.clone(),
     );
 
-    wait_until_ready_for_interaction(env.logger(), new_subnet_node.clone());
+    new_subnet_node
+        .await_status_is_healthy()
+        .expect("New subnet node should become healthy.");
 
     let new_subnet_id = get_app_subnet_id(
         env.clone(),
@@ -851,27 +853,9 @@ fn recover_nns_subnet(
     if !exit_status.success() {
         panic!("{cmd:?} failed!");
     }
-    wait_until_ready_for_interaction(logger.clone(), recovered_nns_node);
-}
-
-fn wait_until_ready_for_interaction(logger: Logger, node: IcNodeSnapshot) {
-    let node_ip = node.get_ip_addr();
-    info!(
-        logger.clone(),
-        "Waiting until node {node_ip:?} is ready for interaction ..."
-    );
-    ic_system_test_driver::retry_with_msg!(
-        format!("Check if node {node_ip:?} is ready for interaction"),
-        logger.clone(),
-        Duration::from_secs(500),
-        Duration::from_secs(5),
-        || node.block_on_bash_script("journalctl | grep -q 'Ready for interaction'")
-    )
-    .unwrap_or_else(|e| {
-        panic!("Node {node_ip:?} didn't become ready for interaction in time because {e:?}")
-    });
-
-    info!(logger, "Node {node_ip:?} is ready for interaction.");
+    recovered_nns_node
+        .await_status_is_healthy()
+        .expect("Recovered NNS node should become healthy.");
 }
 
 fn test_recovered_nns(env: TestEnv, neuron_id: NeuronId, nns_node: IcNodeSnapshot) {