I concur with the others that said leave it alone. You should see some of the pics of sludge build-up some have posted on this forum. Your's is in great shape.
Yeah you wouldn't really want to "degrease" these components that are high friction and typically have a nice coating of oil on them. Not to mention a lot of it would drain back into the engine anyways. It looks fine and its typical for high mileage engines to look brown like that on the inside. As others have said before, just keep changing your oil regularly with high quality oil and it will be okay.
Thanks all! I will stay the course and NOT degrease a thing. I definitely appreciate the argument about existing oil coatings on the components already. Good looking out. Thanks again!