James Turner: Here's a trivial patch, when you have a moment:

James Turner: Here's a trivial patch, when you have a moment:

- removes various members from FGRunway which no-one was using
- any of these can be trivially re-instated if and when someone
actually wants to use them - but right now they're simply bloating up
FGRunway, which we have lots of, because it currently includes all the
taxiways in Robin's data.
- that's it.