Removed redundant code

Author: Klapeyron

demo/node/src/service.rs

@@ -441,17 +441,13 @@ pub async fn new_full<Network: sc_network::NetworkBackend<Block, <Block as Block
 	}
 
 	if enable_grandpa {
-		// if the node isn't actively participating in consensus then it doesn't
-		// need a keystore, regardless of which protocol we use below.
-		let keystore = if role.is_authority() { Some(keystore_container.keystore()) } else { None };
-
 		let grandpa_config = sc_consensus_grandpa::Config {
 			// FIXME #1578 make this available through chainspec
 			gossip_duration: Duration::from_millis(333),
 			justification_generation_period: GRANDPA_JUSTIFICATION_PERIOD,
 			name: Some(name),
 			observer_enabled: false,
-			keystore,
+			keystore: keystore_opt,
 			local_role: role,
 			telemetry: telemetry.as_ref().map(|x| x.handle()),
 			protocol_name: grandpa_protocol_name,