HEB (which is our popular Texas regional grocery chain, similar to the way Publix is in the SE), still has it in place. But in areas where the local authorities didn't have mandates, it was never enforced.
I was in both Costco and Target earlier today, they still have signs up and are requiring it here. And that wasn't in Austin, that was in a suburb that tends way less liberal than Austin proper.
But it won't be the norm for much longer I don't think, even in Austin. I predict that by Memorial Day weekend, everyone's going to say eff it. Businesses that decide to keep it in place, are going to put their employees at risk of confrontation.