remove outdated workaround

app/src/index.js

@@ -1,29 +1,25 @@
-require('./tools/timestampedLogger').replaceLoggers();
-require('dotenv').config();
-require('./tools/quotenv').checkEnv([
-    'SLACK_BOT_TOKEN',
-    'SLACK_APP_TOKEN',
-    'SLACK_SIGNING_SECRET',
-]);
-const { App } = require('@slack/bolt');
-const scheduler = require('./scheduler/scheduler');
-const usergroups = require('./usergroups');
-const { enableActionFunctions } = require('./actionFunctions');
-const { enableEventListeners } = require('./eventListeners');
-const { enableUserCache } = require('./userCache');
-const { enableMiddleware } = require('./middleware');
-const { enableSlashCommands } = require('./slashCommands');
+require("./tools/timestampedLogger").replaceLoggers();
+require("dotenv").config();
+require("./tools/quotenv").checkEnv(["SLACK_BOT_TOKEN", "SLACK_APP_TOKEN", "SLACK_SIGNING_SECRET"]);
+const { App } = require("@slack/bolt");
+const scheduler = require("./scheduler/scheduler");
+const usergroups = require("./usergroups");
+const { enableActionFunctions } = require("./actionFunctions");
+const { enableEventListeners } = require("./eventListeners");
+const { enableUserCache } = require("./userCache");
+const { enableMiddleware } = require("./middleware");
+const { enableSlashCommands } = require("./slashCommands");
 
 const app = new App({
-    token: process.env.SLACK_BOT_TOKEN,
-    signingSecret: process.env.SLACK_SIGNING_SECRET,
-    socketMode: true,
-    appToken: process.env.SLACK_APP_TOKEN,
+  token: process.env.SLACK_BOT_TOKEN,
+  signingSecret: process.env.SLACK_SIGNING_SECRET,
+  socketMode: true,
+  appToken: process.env.SLACK_APP_TOKEN,
 });
 
 const state = {
-    app,
-    usergroups,
+  app,
+  usergroups,
 };
 
 const userCache = enableUserCache(state);
@@ -38,17 +34,8 @@ enableSlashCommands(state);
  * Starts the bot.
  */
 (async () => {
-    await app.start();
-    scheduler.startScheduling(state);
-    scheduler.scheduleUsergroupReadings(state);
-    console.log('⚡️ Bolt app is running!');
+  await app.start();
+  scheduler.startScheduling(state);
+  scheduler.scheduleUsergroupReadings(state);
+  console.log("⚡️ Bolt app is running!");
 })();
-
-/**
- * Workaround so Node 14.x doesn't crash if our WebSocket disconnects and Bolt doesn't reconnect.
- * See https://github.com/slackapi/node-slack-sdk/issues/1243.
- * We could specify node 16.x in our Dockerfile which would make that a crashing error.
- */
-process.on('unhandledRejection', (error) => {
-    throw error;
-});