Draft: Apple TV: fix erroneous out of free space error

Checking for free space on tvOS when receiving a media file is not useful because a different model for storage is accepted on this platform. It is assumed that all of the device's storage is available for all apps at any time because none of it is permanent. As one app fills its container with data the system will delete files from other app's containers. Just writing data without checking if it fits is the right thing to do in this case.