no more Caesar's/Rio shuttle

I'm betting I'm the last to know, as before this week's trip, we hadn't been there since May, but does anyone know when they discontinued this shuttle? we were a little surprised to find this one was gone, and
didn't feel like heading to Harrah's or Bally's, so we just cabbed it back to Rio.

Really??? Going back in April. We had no idea it was discontinued. That stinks.