We replaced the rope going up from the top of Aven Pot towards the Swinsto Great Aven descent three or four years ago, as it is an exposed climb and hard to protect. I think that should stay there.
I personally find the rope one slithers down to the head of Shuffle Pot useful, and it doesn't get in the way of any rigging bolts.
I suspect that the Swinsto final pitch rigging is there for a reason, but I don't know what. That rope is independent and well away from the P-bolts.
I'm not bothered about any of the other bits of tat, including The Pit (Bob's Pit is in Lost Johns' Cave).