keep blank for english asr result (#623)

zhaomingwork

2023-06-13 4a33f08defa92ac6c9c757dbde06d29d183bf203

 funasr/bin/build_trainer.py

@@ -23,7 +23,7 @@
        from funasr.tasks.asr import ASRTask as ASRTask
    elif mode == "paraformer":
        from funasr.tasks.asr import ASRTaskParaformer as ASRTask
    elif mode == "paraformer_online":
    elif mode == "paraformer_streaming":
        from funasr.tasks.asr import ASRTaskParaformer as ASRTask
    elif mode == "paraformer_vad_punc":
        from funasr.tasks.asr import ASRTaskParaformer as ASRTask