MP4DeleteTrack - Delete a track
hFile Specifies the mp4 file to which the operation applies.
Specifies the track to which the operation applies.
Upon success, true (1). Upon an error, false (0).
MP4DeleteTrack deletes the control information associated with the
specified track. The trackId will become invalid if this call succeeds.
Note that the samples associated with this track are not deleted with
this call. This can be accomplished via MP4Optimize(). The reason for
this is that multiple tracks can reference the same samples so a global
view must be taken when deleting them.