Remove unnecessary import in api_train.py
Remove unnecessary import in api_train.py

beckett1124/Paddle,baidu/Paddle,reyoung/Paddle,jacquesqiao/Paddle,cxysteven/Paddle,putcn/Paddle,chengduoZH/Paddle,hedaoyuan/Paddle,Canpio/Paddle,PaddlePaddle/Paddle,hedaoyuan/Paddle,yu239/Paddle,lcy-seso/Paddle,pkuyym/Paddle,putcn/Paddle,putcn/Paddle,baidu/Paddle,lispc/Paddle,luotao1/Paddle,tensor-tang/Paddle,lispc/Paddle,tensor-tang/Paddle,luotao1/Paddle,wen-bo-yang/Paddle,putcn/Paddle,hedaoyuan/Paddle,pkuyym/Paddle,emailweixu/Paddle,lispc/Paddle,lcy-seso/Paddle,beckett1124/Paddle,wen-bo-yang/Paddle,yu239/Paddle,yu239/Paddle,pengli09/Paddle,yu239/Paddle,yu239/Paddle,cxysteven/Paddle,yu239/Paddle,chengduoZH/Paddle,cxysteven/Paddle,pkuyym/Paddle,beckett1124/Paddle,livc/Paddle,Canpio/Paddle,lcy-seso/Paddle,Canpio/Paddle,gangliao/Paddle,gangliao/Paddle,Canpio/Paddle,luotao1/Paddle,baidu/Paddle,beckett1124/Paddle,jacquesqiao/Paddle,lispc/Paddle,gangliao/Paddle,emailweixu/Paddle,PaddlePaddle/Paddle,lispc/Paddle,beckett1124/Paddle,hedaoyuan/Paddle,yu239/Paddle,chengduoZH/Paddle,gangliao/Paddle,cxysteven/Paddle,luotao1/Paddle,hedaoyuan/Paddle,luotao1/Paddle,emailweixu/Paddle,wen-bo-yang/Paddle,jacquesqiao/Paddle,QiJune/Paddle,emailweixu/Paddle,pengli09/Paddle,emailweixu/Paddle,Canpio/Paddle,QiJune/Paddle,livc/Paddle,beckett1124/Paddle,pkuyym/Paddle,putcn/Paddle,pkuyym/Paddle,livc/Paddle,yu239/Paddle,pkuyym/Paddle,luotao1/Paddle,QiJune/Paddle,QiJune/Paddle,reyoung/Paddle,tensor-tang/Paddle,PaddlePaddle/Paddle,lispc/Paddle,Canpio/Paddle,lcy-seso/Paddle,baidu/Paddle,gangliao/Paddle,PaddlePaddle/Paddle,gangliao/Paddle,reyoung/Paddle,cxysteven/Paddle,livc/Paddle,jacquesqiao/Paddle,jacquesqiao/Paddle,gangliao/Paddle,Canpio/Paddle,putcn/Paddle,PaddlePaddle/Paddle,chengduoZH/Paddle,pengli09/Paddle,chengduoZH/Paddle,wen-bo-yang/Paddle,luotao1/Paddle,hedaoyuan/Paddle,beckett1124/Paddle,hedaoyuan/Paddle,QiJune/Paddle,wen-bo-yang/Paddle,Canpio/Paddle,lispc/Paddle,reyoung/Paddle,livc/Paddle,reyoung/Paddle,pengli09/Paddle,livc/Paddle,pengli09/Paddle,PaddlePaddle/Paddle,reyoung/Paddle,emailweixu/Paddle,emailweixu/Paddle,livc/Paddle,wen-bo-yang/Paddle,pengli09/Paddle,lcy-seso/Paddle,cxysteven/Paddle,pengli09/Paddle,baidu/Paddle,tensor-tang/Paddle,cxysteven/Paddle,jacquesqiao/Paddle,tensor-tang/Paddle,lispc/Paddle,hedaoyuan/Paddle,lcy-seso/Paddle,wen-bo-yang/Paddle,QiJune/Paddle,PaddlePaddle/Paddle,pengli09/Paddle