Remove "Dash" [-] from Graded Discussion Box

[canvas_admin]

Does anybody know of a way via CSS or JS to remove the "dash" that appears within the grade box for a graded discussion? The dash did not always use to be there and I'm not sure when it appeared but it has been sometime this year I believe. It used to be blank and I would love to have it blank for our instance again. I've attached a screenshot below to show the area about which I am talking.

 

[masantos]

Hello @canvas_admin 

The dash is also viewable in the gradebook, indicating a null grade. 

If you feel that this should be changed I recommends submitting an idea to Canvas.

[canvas_admin]

But I don't want to get rid of it in the grade book; only here. Thus my question as to the possibility of doing this via CSS or JS.