Remove useless SecretKey class

package.json

@@ -90,7 +90,6 @@
     "src/client/voice/receiver/VoiceReadable.js": false,
     "src/client/voice/receiver/VoiceReceiver.js": false,
     "src/client/voice/util/Secretbox.js": false,
-    "src/client/voice/util/SecretKey.js": false,
     "src/client/voice/util/VolumeInterface.js": false,
     "src/client/voice/VoiceBroadcast.js": false
   }

src/client/voice/VoiceWebSocket.js

@@ -1,5 +1,4 @@
 const { OPCodes, VoiceOPCodes } = require('../../util/Constants');
-const SecretKey = require('./util/SecretKey');
 const EventEmitter = require('events');
 const { Error } = require('../../errors');
 const WebSocket = require('../../WebSocket');
@@ -164,14 +163,17 @@ class VoiceWebSocket extends EventEmitter {
          */
         this.emit('ready', packet.d);
         break;
+      /* eslint-disable no-case-declarations */
       case VoiceOPCodes.SESSION_DESCRIPTION:
+        const key = new Uint8Array(new ArrayBuffer(packet.d.secret_key.length));
+        for (const i in packet.d.secret_key) key[i] = packet.d.secret_key[i];
         /**
          * Emitted once the Voice Websocket receives a description of this voice session.
          * @param {string} encryptionMode The type of encryption being used
-         * @param {SecretKey} secretKey The secret key used for encryption
+         * @param {Uint8Array} secretKey The secret key used for encryption
          * @event VoiceWebSocket#sessionDescription
          */
-        this.emit('sessionDescription', packet.d.mode, new SecretKey(packet.d.secret_key));
+        this.emit('sessionDescription', packet.d.mode, key);
         break;
       case VoiceOPCodes.SPEAKING:
         /**

src/client/voice/dispatcher/StreamDispatcher.js

@@ -105,7 +105,7 @@ class StreamDispatcher extends Writable {
     packetBuffer.writeUIntBE(this.player.voiceConnection.authentication.ssrc, 8, 4);
 
     packetBuffer.copy(nonce, 0, 0, 12);
-    buffer = secretbox.methods.close(buffer, nonce, this.player.voiceConnection.authentication.secretKey.key);
+    buffer = secretbox.methods.close(buffer, nonce, this.player.voiceConnection.authentication.secretKey);
     for (let i = 0; i < buffer.length; i++) packetBuffer[i + 12] = buffer[i];
 
     return packetBuffer;

src/client/voice/receiver/VoiceReceiver.js

@@ -148,7 +148,7 @@ class VoiceReceiver extends EventEmitter {
 
   handlePacket(msg, user) {
     msg.copy(nonce, 0, 0, 12);
-    let data = secretbox.methods.open(msg.slice(12), nonce, this.voiceConnection.authentication.secretKey.key);
+    let data = secretbox.methods.open(msg.slice(12), nonce, this.voiceConnection.authentication.secretKey);
     if (!data) {
       /**
        * Emitted whenever a voice packet experiences a problem.

src/client/voice/util/SecretKey.js

@@ -1,16 +0,0 @@
-/**
- * Represents a Secret Key used in encryption over voice.
- * @private
- */
-class SecretKey {
-  constructor(key) {
-    /**
-     * The key used for encryption
-     * @type {Uint8Array}
-     */
-    this.key = new Uint8Array(new ArrayBuffer(key.length));
-    for (const index in key) this.key[index] = key[index];
-  }
-}
-
-module.exports = SecretKey;