remove cffi Poller and unused polling code
remove cffi Poller and unused polling code
caidongyun/pyzmq,Mustard-Systems-Ltd/pyzmq,yyt030/pyzmq,ArvinPan/pyzmq,Mustard-Systems-Ltd/pyzmq,dash-dash/pyzmq,Mustard-Systems-Ltd/pyzmq,caidongyun/pyzmq,dash-dash/pyzmq,swn1/pyzmq,yyt030/pyzmq,swn1/pyzmq,yyt030/pyzmq,ArvinPan/pyzmq,swn1/pyzmq,ArvinPan/pyzmq,caidongyun/pyzmq,dash-dash/pyzmq