Revert "epochs 8 in image aug"
Revert "epochs 8 in image aug"

This reverts commit d5b80b1b4bf56475e1dd9b240474351d4d7a882a.

d2l-ai/d2l-zh,mli/gluon-tutorials-zh,d2l-ai/d2l-zh,mli/gluon-tutorials-zh,mli/gluon-tutorials-zh,d2l-ai/d2l-zh,mli/gluon-tutorials-zh