Cross off
Definition 1 of 2
Pro Tip 1/3Task Completion
Use 'cross off' when you have completed an item and want to indicate that it’s no longer pending. 
After reading the book, I could finally cross it off my reading list.
Pro Tip 2/3Visual Action
'Cross off' often means to literally make a visible mark, like a line, over text. 
He took the pen and crossed off his old address on the letter.
Pro Tip 3/3Not Needed
It can mean something is no longer required, such as a task you thought you needed to do but don't. 
Turns out I don't need to make dinner, so I crossed it off my chores.