I remember thinking they should've brought Tony back in the 2000s - I believe he vanished in the Middle East on assignment? Presumed dead? I thought it would be interesting if he emerged played by someone like David Selby (who was almost a dead ringer for Reinholt) and had gone native out in the Middle East a la Apocalypse Now, and was back to terrorize people like Todd. The only clue the audience would have about who this mystery unseen figure out in the wilderness was at first would be a crumpled, torn picture of little Brian.
I think it was a combination of both his not wanting to be on the show (he said OLTL's writing was "even worse than Another World's," YIKES!) and TPTB's realization that he was more trouble than he was worth.
Erika Slezak said that on his last day at the studio, Reinholt ranted and raved his way down the hallways and out the door. She also said he was "crazy" while on the show. but calmed down in later years. When cutting into the soap's anniversary cake that year, the producer at the time "joked" that the cake should have been GR's heart.
It looked like there was no love lost on either side.
Unfortunately, however, the character of Tony (who should have been a major and influential part of the show) failed badly after Reinholt left. It was a relief when they finally killed him off after three failed recasts.