[Del] remove useless code
[Del] remove useless code

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