How to remove subtitle after added from file

[andj207]

My app need to edit and update subtitle file frequently. And, after update the subtitle content file it need to update to VLC player to reflect the changes. I use:

_videoPlayerController.addSubtitleFromFile(
    subtitleFile.file,
    isSelected: true,
  );

Every times I update the file content and call that function, a new "subtitle" is added in the player. So, how can I remove the old one?