[Mod] remove OrderManager
[Mod] remove OrderManager

andrewchenshx/vnpy,msincenselee/vnpy,msincenselee/vnpy,bigdig/vnpy,vnpy/vnpy,bigdig/vnpy,andrewchenshx/vnpy,andrewchenshx/vnpy,andrewchenshx/vnpy,msincenselee/vnpy,msincenselee/vnpy,andrewchenshx/vnpy,bigdig/vnpy,bigdig/vnpy,vnpy/vnpy