remove excessive comments in flacEncodeWorker.js

react/features/local-recording/recording/flac/flacEncodeWorker.js

         break;
     }
 };
-
-/**
- * if(wavBuffers.length > 0){
-        //if there is buffered audio: encode buffered first (and clear buffer)
-        var len = wavBuffers.length;
-        var buffered = wavBuffers.splice(0, len);
-        for(var i=0; i < len; ++i){
-            doEncodeFlac(buffered[i]);
-        }
-    }
- */