remove unnecessary code
remove unnecessary code

kamigaito/cnn,cherryc/dynet,ndnlp/cnn,Peilun-Li/dynet,dhgarrette/cnn,Peilun-Li/dynet,cherryc/dynet,mitchellstern/dynet,cherryc/dynet,dhgarrette/cnn,kamigaito/cnn,Peilun-Li/dynet,zhangscth/cnn,Aureliu/cnn,kaishengyao/cnn,yoavg/cnn,mitchellstern/dynet,dhgarrette/cnn,Abasyoni/dynet,echohenry2006/cnn,yanweifu/cnn,mrzu/cnn,Abasyoni/dynet,yoavg/cnn,Abasyoni/dynet,kaishengyao/cnn