If you would like to delete a grade item from your gradebook, please do the following:
From the course navigation bar, click Assessment > Grades:
Click “Manage Grades”:
Select the grade item:
Scroll up and click “More Actions” and click “Delete”:
Select the item again
Scroll down and click the “Delete” button:
Click the “Delete” button in confirmation box:
Note: If the grade item has an association indicated by a black circle with a question mark, you will need to delete the association before the grade item can be deleted: