Remove JS plotting

app/src/index.js

@@ -1,10 +1 @@
-import { initLeaderboardResults } from './leaderboard_results.js';
-import { initFineTasks } from './fine_tasks.js';
-import { initPlotApplets } from './plot_task.js';
 import 'simple-datatables/dist/style.css';
-
-document.addEventListener('DOMContentLoaded', () => {
-  initLeaderboardResults('leaderboard-results');
-  initFineTasks('fine-tasks-results');
-  initPlotApplets();
-}, { once: true });