Nooo! That high step baffle is what makes a good Link. Don't do anything to it! Play it.If there is too much material directly behind the tip rail, it can cause chirping.
I have found this through trial and error in pieces I have worked on.
When opening a piece up, if the baffle isn't carefully taken down just behind the tip, it has often caused chirping even at low volumes.
Resist the urge to have it fudged with.