That's where you're going wrong. Content aware fill is not meant to remove objects, it's there to add (fill) objects. That's why I pointed out on a thread some while back that it's taking all the creativity and challenge out of photography.
Open a white canvas, select a huge brush size, content aware fill the whole canvas and voila, instant picture in a few seconds.
That way you can safely leave the multi-million dollar camera and lenses safe in the dehumidifier until you feel withdrawal and the need to drool again.
Warning: No amount of technical jiggery pokery will simulate the magic Leica glow. That, as already mentioned, you can only get from original German glass or fungus infections in your lenses.
Further Warning: None of the above is meant as a serious comment.
Further Further Warning: This bit is serious, but if you can't see a good picture post-content-aware-fill then you need to look a bit harder. It's hard to explain exactly what the difference is, but it is there. A bit like the Leica glow.