Update app.js

@@ -85,9 +85,8 @@ async function handleEvent(event) {
       client.getMessageContent(event.message.id)
   .then((stream) => {
     stream.on('data', (chunk) => {
-      console.log(chunk);
       client.replyMessage(event.replyToken,chunk).then(resolve).catch(reject);    
-
+       /* 
       var cheerio = require('cheerio');
       
       var uriBase = 'https://koreacentral.api.cognitive.microsoft.com/vision/v2.1/ocr';
@@ -138,13 +137,9 @@ async function handleEvent(event) {
             }
             client.replyMessage(event.replyToken,result).then(resolve).catch(reject);
           });
-      });
-    });
-    stream.on('error', (err) => {
-      // error handling
+      });*/
     });
   });
-     
     })
   }
   else if(event.type == 'message' && event.message.type == 'text')