Remove unused variables

lib/client.js

@@ -311,7 +311,6 @@ export default class Client extends EventTarget {
 		}
 
 		let deleteBatch = null;
-		let k;
 		switch (msg.command) {
 		case irc.RPL_WELCOME:
 			if (this.params.saslPlain && !this.supportsCap) {
@@ -434,7 +433,6 @@ export default class Client extends EventTarget {
 			if (this.status === Client.Status.REGISTERED) {
 				break;
 			}
-			let reason = msg.params[msg.params.length - 1];
 			if (msg.params[0] === "BOUNCER" && msg.params[2] === "BIND") {
 				this.dispatchError(new Error("Failed to bind to bouncer network", {
 					cause: new IRCError(msg),
@@ -867,7 +865,6 @@ export default class Client extends EventTarget {
 	fetchBatch(msg, batchType) {
 		let batchName = null;
 		let messages = [];
-		let cmd = msg.command;
 		return this.roundtrip(msg, (msg) => {
 			if (batchName) {
 				let batch = msg.batch;

lib/irc.js

@@ -145,12 +145,6 @@ export function formatTags(tags) {
 }
 
 export function parsePrefix(s) {
-	let prefix = {
-		name: null,
-		user: null,
-		host: null,
-	};
-
 	let host = null;
 	let i = s.indexOf("@");
 	if (i > 0) {