Mux player error logs when loading raw video src

[luwes]

we should be able to turn off these error logs. they're called in playback-core

[heff]

@luwes what's needed to fix this?

[luwes]

I spoke internally with the elements team and they're firm on leaving the error in.

another option to hide this from the user would be to monkeypatch console.error, not great but this error would only show in the local environment when accessing the local raw video file...