remove unnecessary codes

src/server/routes/apiv3/slack-bot.js

@@ -1,10 +1,6 @@
 
-const { EventEmitter } = require('events');
-const { createServer } = require('http');
 const express = require('express');
 
-const { App } = require('@slack/bolt');
-
 const router = express.Router();
 
 
@@ -12,97 +8,16 @@ module.exports = (crowi) => {
 
   router.get('/', async(req, res) => {
 
-    class ReceiverClass extends EventEmitter {
-
-      constructor(signingSecret, endpoints) {
-        super();
-        this.app = express();
-        this.server = createServer(this.app);
-
-        for (const endpoint of endpoints) {
-          this.app.post(endpoint, this.requestHandler.bind(this));
-        }
-      }
-
-      init(app) {
-        this.bolt = app;
-      }
-
-      start(port) {
-        return new Promise((resolve, reject) => {
-          try {
-            this.server.listen(port, () => {
-              resolve(this.server);
-            });
-          }
-          catch (error) {
-            reject(error);
-          }
-        });
-      }
-
-      stop() {
-        return new Promise((resolve, reject) => {
-          this.server.close((error) => {
-            if (error) {
-              reject(error);
-              return;
-            }
-            resolve();
-          });
-        });
-      }
-
-      // This is a very simple implementation. Look at the ExpressReceiver source for more detail
-      async requestHandler(req, res) {
-        let ackCalled = false;
-        // Assume parseBody function exists to parse incoming requests
-        const parsedReq = parseBody(req);
-        const event = {
-          body: parsedReq.body,
-          // Receivers are responsible for handling acknowledgements
-          // `ack` should be prepared to be called multiple times and
-          // possibly with `response` as an error
-          ack: (response) => {
-            if (ackCalled) {
-              return;
-            }
-
-            if (response instanceof Error) {
-              res.status(500).send();
-            }
-            else if (!response) {
-              res.send('');
-            }
-            else {
-              res.send(response);
-            }
-
-            ackCalled = true;
-          },
-        };
-        await this.bolt.processEvent(event);
-      }
-
-    }
-
-    const receiver = new ReceiverClass(process.env.SLACK_SIGNING_SECRET, '/');
-
-    const app = new App({
-      token: process.env.SLACK_BOT_TOKEN,
-      receiver,
-    });
-
     // TODO: improve event method
-    app.event('message', async({ event, client }) => {
-      // Do some slack-specific stuff here
-      await client.chat.postMessage('hogehoge');
-    });
-
-    (async() => {
-      await app.start(8080);
-      console.log('app is running');
-    })();
+    // app.event('message', async({ event, client }) => {
+    //   // Do some slack-specific stuff here
+    //   await client.chat.postMessage('hogehoge');
+    // });
+
+    // (async() => {
+    //   await app.start(8080);
+    //   console.log('app is running');
+    // })();
   });