get rid of some prints in env
get rid of some prints in env

brownplt/LambdaS5,brownplt/LambdaS5,logchi/LambdaS5,brownplt/LambdaS5,lijunsong/LambdaS5,lijunsong/LambdaS5,lijunsong/LambdaS5,logchi/LambdaS5,logchi/LambdaS5