Fix DEBUG compilation error with double declaration of a timer.
Fix DEBUG compilation error with double declaration of a timer.

OpenImageIO/oiio,YangYangTL/oiio,OpenImageIO/oiio,sambler/oiio,lgritz/oiio,bdeluca/oiio,mcanthony/oiio,mcanthony/oiio,sambler/oiio,cwilling/oiio,scott-wilson/oiio,sambler/oiio,scott-wilson/oiio,sambler/oiio,mcanthony/oiio,OpenImageIO/oiio,bdeluca/oiio,scott-wilson/oiio,micler/oiio,cwilling/oiio,mcanthony/oiio,YangYangTL/oiio,micler/oiio,scott-wilson/oiio,cwilling/oiio,micler/oiio,lgritz/oiio,lgritz/oiio,OpenImageIO/oiio,cwilling/oiio,bdeluca/oiio,lgritz/oiio,bdeluca/oiio,YangYangTL/oiio,micler/oiio,YangYangTL/oiio