fix(linter): remove unneeded vars and add jsdoc

lib/parser/contents/classes/Format.js

@@ -2,7 +2,6 @@
 
 const NToken = require('../../../deciphers/NToken');
 const Signature = require('../../../deciphers/Signature');
-const QueryString = require('querystring');
 
 class Format {
   constructor(data) {

lib/parser/contents/classes/RichSection.js

@@ -1,10 +1,12 @@
-const Parser = require('..');
+'use strict';
+
+//const Parser = require('..');
 
 // TODO: implement all renderers related to this
 class RichSection {
   type = 'RichSection';
 
-  constructor(data) {
+  constructor(/* data */) {
     // this.contents = Parser.parse(data.content);
   }
 }