Do not require the collator key to be passed (#459)

cumulus/polkadot-parachains/src/service.rs

@@ -27,7 +27,6 @@ use cumulus_client_service::{
 use cumulus_primitives_core::{
 	ParaId, relay_chain::v1::{Hash as PHash, PersistedValidationData},
 };
-use polkadot_primitives::v1::CollatorPair;
 
 use sc_client_api::ExecutorProvider;
 use sc_executor::native_executor_instance;
@@ -195,7 +194,6 @@ where
 #[sc_tracing::logging::prefix_logs_with("Parachain")]
 async fn start_node_impl<RuntimeApi, Executor, RB, BIQ, BIC>(
 	parachain_config: Configuration,
-	collator_key: CollatorPair,
 	polkadot_config: Configuration,
 	id: ParaId,
 	rpc_ext_builder: RB,
@@ -255,7 +253,6 @@ where
 
 	let relay_chain_full_node = cumulus_client_service::build_polkadot_full_node(
 		polkadot_config,
-		collator_key.clone(),
 		telemetry_worker_handle,
 	)
 	.map_err(|e| match e {
@@ -333,7 +330,6 @@ where
 			announce_block,
 			client: client.clone(),
 			task_manager: &mut task_manager,
-			collator_key,
 			relay_chain_full_node,
 			spawner,
 			parachain_consensus,
@@ -404,7 +400,6 @@ pub fn rococo_parachain_build_import_queue(
 /// Start a rococo parachain node.
 pub async fn start_rococo_parachain_node(
 	parachain_config: Configuration,
-	collator_key: CollatorPair,
 	polkadot_config: Configuration,
 	id: ParaId,
 ) -> sc_service::error::Result<(
@@ -413,7 +408,6 @@ pub async fn start_rococo_parachain_node(
 )> {
 	start_node_impl::<rococo_parachain_runtime::RuntimeApi, RococoParachainRuntimeExecutor, _, _, _>(
 		parachain_config,
-		collator_key,
 		polkadot_config,
 		id,
 		|_| Default::default(),
@@ -522,7 +516,6 @@ pub fn shell_build_import_queue(
 /// Start a polkadot-shell parachain node.
 pub async fn start_shell_node(
 	parachain_config: Configuration,
-	collator_key: CollatorPair,
 	polkadot_config: Configuration,
 	id: ParaId,
 ) -> sc_service::error::Result<(
@@ -531,7 +524,6 @@ pub async fn start_shell_node(
 )> {
 	start_node_impl::<shell_runtime::RuntimeApi, ShellRuntimeExecutor, _, _, _>(
 		parachain_config,
-		collator_key,
 		polkadot_config,
 		id,
 		|_| Default::default(),
@@ -790,7 +782,6 @@ where
 /// Start a statemint/statemine/westmint parachain node.
 pub async fn start_statemint_node<RuntimeApi, Executor>(
 	parachain_config: Configuration,
-	collator_key: CollatorPair,
 	polkadot_config: Configuration,
 	id: ParaId,
 ) -> sc_service::error::Result<(
@@ -817,7 +808,6 @@ where
 {
 	start_node_impl::<RuntimeApi, Executor, _, _, _>(
 		parachain_config,
-		collator_key,
 		polkadot_config,
 		id,
 		|_| Default::default(),