remove enum reference from trainer
remove enum reference from trainer

baidu/Paddle,Canpio/Paddle,QiJune/Paddle,tensor-tang/Paddle,tensor-tang/Paddle,QiJune/Paddle,pkuyym/Paddle,putcn/Paddle,chengduoZH/Paddle,reyoung/Paddle,Canpio/Paddle,Canpio/Paddle,chengduoZH/Paddle,pkuyym/Paddle,PaddlePaddle/Paddle,chengduoZH/Paddle,chengduoZH/Paddle,chengduoZH/Paddle,luotao1/Paddle,luotao1/Paddle,reyoung/Paddle,jacquesqiao/Paddle,pkuyym/Paddle,luotao1/Paddle,tensor-tang/Paddle,jacquesqiao/Paddle,PaddlePaddle/Paddle,tensor-tang/Paddle,putcn/Paddle,tensor-tang/Paddle,baidu/Paddle,PaddlePaddle/Paddle,jacquesqiao/Paddle,putcn/Paddle,putcn/Paddle,baidu/Paddle,luotao1/Paddle,QiJune/Paddle,pkuyym/Paddle,Canpio/Paddle,putcn/Paddle,PaddlePaddle/Paddle,Canpio/Paddle,reyoung/Paddle,QiJune/Paddle,QiJune/Paddle,Canpio/Paddle,Canpio/Paddle,luotao1/Paddle,pkuyym/Paddle,baidu/Paddle,Canpio/Paddle,jacquesqiao/Paddle,baidu/Paddle,luotao1/Paddle,reyoung/Paddle,reyoung/Paddle,pkuyym/Paddle,jacquesqiao/Paddle,reyoung/Paddle,luotao1/Paddle,PaddlePaddle/Paddle,jacquesqiao/Paddle,PaddlePaddle/Paddle,putcn/Paddle,QiJune/Paddle,PaddlePaddle/Paddle