Transform "unstable" example into an "new JSON-RPC" example

.github/workflows/ci.yml

@@ -215,7 +215,7 @@ jobs:
           staking_batch_payout,
           subscribe_events,
           sudo,
-          unstable_rpc_api_calls,
+          new_json_rpc_api_calls,
           transfer_with_tungstenite_client,
           transfer_with_ws_client,
           author_tests,

examples/async/examples/unstable_rpc_api_calls.rs → examples/async/examples/new_json_rpc_api_calls.rs

@@ -48,25 +48,11 @@ async fn main() {
 	let json_string = serde_json::to_string(&json_value).unwrap();
 	println!("Available methods: {json_string} \n");
 
-	// Since it's an unstable api and might change anytime, we first check if our calls are still
-	// available:
 	let chain_name_request = "chainSpec_v1_chainName";
 	let chain_genesis_hash_request = "chainSpec_v1_genesisHash";
 	let transaction_submit_watch = "transactionWatch_v1_submitAndWatch";
 	let transaction_unwatch = "transactionWatch_v1_unwatch";
 
-	let request_vec = [
-		chain_name_request,
-		chain_genesis_hash_request,
-		transaction_submit_watch,
-		transaction_unwatch,
-	];
-	for request in request_vec {
-		if !json_string.contains(request) {
-			panic!("Api has changed, please update the call {request}.");
-		}
-	}
-
 	// Submit the above defiend rpc requests:
 	let chain_name: String = api.client().request(chain_name_request, rpc_params![]).await.unwrap();
 	println!("Our chain is called: {chain_name}");