[ODE] Retire 'include/odecpp_old.h' ?

[David Walters]

Hi, just a quick straw poll really - I'm wondering is anyone still
using the file 'odecpp_old.h' ?

The reason I ask is that it seems pretty behind the times in terms of
features (only supporting a few joint types, etc.) and the readme in
the folder doesn't even refer to it at all when requesting changes be
applied to 'ode_cpp.h' and 'odecpp_collision.h'.

I agree that a C++ interface for ODE is better for some people, but do
we still need two?

Regards,
David