Thank you for asking this. I’m not looking to remove my daughter’s godfather, officially, but like you, he has recently shown that his faith is not where it should be. He doesn’t believe all the Church teaches. I now regret the choice, though he is still close to our family and he is really good to the kids. At the time, he was the only other Catholic I knew to call upon. I appreciate that there is someone in a similar boat (though sorry you find yourself there)
Keep praying for him!