Deleting submission_comment

[peter_graening]

I'm working on a grade uploader and part of the feedback will be provided in a submission comment.  I have no problems getting the grade and comment updated using the REST API.  I would like to be able to have an "overwrite existing grade & comment" mode, but there doesn't seem to be a way to remove submission comment via the API.  It can be done in the Canvas UI, but it's not feasible to go through and delete comments in SpeedGrader.  Has anyone found a way to delete submission comments through the API?

[peter_graening]

And in thinking about this further, this is for an assignment with no student submissions.  So it may be feasible to just delete the entire assignment and create a new one.  But it would be nice to have something that leaves the current assignment intact.

[elf]

I am also looking for this feature...