[ODE] patch: Nguyen Binh's dSetZero() removal

[Adam D. Moss]

Adam D. Moss wrote:
> This patch isolates Nguyen's work that removes many
> unnecessary dSetZero() calls (and a few other redundant
> initializations).  I've tested it briefly (only in StepFast
> mode) and not seen anything unusual.
(I've now also tested it on non-StepFast too.)

This patch has been checked in to CVS -- thank you Nguyen.

--Adam
-- 
Adam D. Moss   . ,,^^   adam at gimp.org   http://www.foxbox.org/   co:3