Cleanup light client leftovers (#1456)

* Cleanup light client leftovers

* Readme: make it clear that Collator is full node of parachain

* cargo update -p sp-io

* cargo update -p polkadot-primitives

parachain-template/node/src/service.rs

@@ -28,7 +28,7 @@ use cumulus_relay_chain_rpc_interface::RelayChainRPCInterface;
 use sc_client_api::ExecutorProvider;
 use sc_executor::NativeElseWasmExecutor;
 use sc_network::NetworkService;
-use sc_service::{Configuration, PartialComponents, Role, TFullBackend, TFullClient, TaskManager};
+use sc_service::{Configuration, PartialComponents, TFullBackend, TFullClient, TaskManager};
 use sc_telemetry::{Telemetry, TelemetryHandle, TelemetryWorker, TelemetryWorkerHandle};
 use sp_api::ConstructRuntimeApi;
 use sp_keystore::SyncCryptoStorePtr;
@@ -257,10 +257,6 @@ where
 		bool,
 	) -> Result<Box<dyn ParachainConsensus<Block>>, sc_service::Error>,
 {
-	if matches!(parachain_config.role, Role::Light) {
-		return Err("Light client not supported!".into())
-	}
-
 	let parachain_config = prepare_node_config(parachain_config);
 
 	let params = new_partial::<RuntimeApi, Executor, BIQ>(&parachain_config, build_import_queue)?;