[Update] High-level APIs for testing a video and rawframes not working

[Dai-Wenxun]

Motivation

The test examples in High-level APIs for testing a video and rawframes don't work, which is caused by the wrong argument labels passed to inference_recognizer. The declaration of inference_recognizer is def inference_recognizer(model, video, outputs=None, as_tensor=True, **kwargs), and the argument outputs is names of layers whose outputs need to be returned not the filepath of the labels.

Modification

I remove the argument labels passed to inference_recognizer and since the argument use_frames in init_recognizer is deprecated PR #1191, I remove it too.

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