WWE worked pretty fast after the news broke of Chris Jericho signing with All Elite Wrestling (AEW).
Jericho was first moved to the alumni section of the WWE website after the news broke. They have also replaced him in the opening intro for RAW and Smackdown.
Jericho has been replaced by the Bar. Here is a side-by-side image:
On a related note, Cody and Brandi Rhodes responded to the reports of fans having trouble entering Smackdown with AEW merch on. You can read their comments here.