docs: undocument private constructors (#6732)

src/structures/GuildMember.js

@@ -13,11 +13,6 @@ const Permissions = require('../util/Permissions');
  * @extends {Base}
  */
 class GuildMember extends Base {
-  /**
-   * @param {Client} client The instantiating client
-   * @param {APIGuildMember} data The data for the guild member
-   * @param {Guild} guild The guild the member is part of
-   */
   constructor(client, data, guild) {
     super(client);