chore: fix linting

Author: jacobheun

src/index.js

@@ -359,6 +359,7 @@ class PubsubBaseProtocol extends EventEmitter {
    * Validates the given message. The signature will be checked for authenticity.
    * @param {rpc.RPC.Message} message
    * @param {function(Error, Boolean)} callback
+   * @returns {void}
    */
   validate (message, callback) {
     // If strict signing is on and we have no signature, abort

test/pubsub.spec.js

@@ -8,10 +8,8 @@ const expect = chai.expect
 const series = require('async/series')
 const parallel = require('async/parallel')
 
-const { Message } = require('../src/message')
-const { SignPrefix } = require('../src/message/sign')
 const PubsubBaseProtocol = require('../src')
-const { randomSeqno, normalizeOutRpcMessage } = require('../src/utils')
+const { randomSeqno } = require('../src/utils')
 const utils = require('./utils')
 const createNode = utils.createNode