Update concert.js

@@ -143,9 +143,8 @@ function handleEvent(event) {
       client.replyMessage(event.replyToken, videourl).then(resolve).catch(reject);
       client.replyMessage(event.replyToken, videourl).then(resolve).catch(reject);
     });
     });
   });
   });
-}
-  else
-  {
+  }
+  
   return new Promise(function(resolve, reject) {
   return new Promise(function(resolve, reject) {
     //언어 감지 option
     //언어 감지 option
     var detect_options = {
     var detect_options = {
@@ -208,5 +207,5 @@ function handleEvent(event) {
     });
     });
 
 
     });
     });
-  }
+  
 }
 }
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