Removed unused vars causing linting warnings

Author: dwight9339

server/routes/embed.routes.js

@@ -1,5 +1,4 @@
 import { Router } from 'express';
-import * as EmbedController from '../controllers/embed.controller';
 
 const editorUrl = process.env.EDITOR_URL;
 

server/routes/redirectEmbed.routes.js

@@ -1,7 +1,6 @@
 import { Router } from 'express';
 
 const router = new Router();
-const previewUrl = process.env.PREVIEW_URL;
 
 router.get('/:username/embed/:project_id', (req, res) => {
   const { username, project_id: projectId } = req.params;