This commit introduces a remove_episodes function/CLI tool to remove
specific episodes from a dataset, and will automatically modify
all required data, video, and metadata. Optionally, the script will
push the modified dataset to the hub (True by default).
The function will safely remove the episodes, meaning that if at
any point during the process a failure occurs, the original dataset
is preserved. Additionally, the original dataset is optionally backed up
in case it is needed to revert to.
284bc5bfe3