Merge pull request #59 from khastation/master

added code to delete raw files from KVSTranscribeStreamingLambda after uploading to S3

src/main/java/com/amazonaws/kvstranscribestreaming/KVSTranscribeStreamingLambda.java

@@ -281,7 +281,12 @@ private void closeFileAndUploadRawAudio(KVSStreamTrackObject kvsStreamTrackObjec
         } else {
             logger.info("Skipping upload to S3.  saveCallRecording was disabled or audio file has 0 bytes: " + kvsStreamTrackObject.getSaveAudioFilePath().toString());
         }
-
+        //Delete raw files from the lambda function
+        File fileToDelete = new File(kvsStreamTrackObject.getSaveAudioFilePath().toString());
+        if (fileToDelete != null) {
+            Boolean deletionResult = fileToDelete.delete();
+            logger.info("Raw file for contactId {} deletion result: {}", contactId, deletionResult);
+        }
     }
 
     /**