remove unnecessary intermediate variables
remove unnecessary intermediate variables

nolanlawson/buffer,LiuDeng/buffer,feross/buffer,SAGV/buffer,beni55/buffer,beni55/buffer,btd/buffer,loon3/buffer,LinusU/buffer,kawanet/buffer,loon3/buffer,LinusU/buffer,kawanet/buffer,SAGV/buffer,btd/buffer,feross/buffer,nolanlawson/buffer,LiuDeng/buffer,feross/buffer