Created by: heavengate

PR types

Others

PR changes

APIs

Describe

Deprecate APIs under paddle.reader

• remove APIs from paddle.reader.__all__ and FluidDoc would not show APIs
• remain paddle.reader alias under fluid.io but do not show these APIs in __all__ either
• using paddle.reader.xxx or fluid.io.xxx is OK，but cannot import APIs like from paddle.reader import *
• paddle.reader.shuffle is wrongly alias to paddle.tesnor.shuffle， but paddle.reader.shuffle is a dataset shuffle API, delete paddle.tensor.shuffle currently
• API remove from FluidDoc by https://github.com/PaddlePaddle/FluidDoc/pull/2504 and will not be generate by gen_doc.py after this PR merged

should add paddle.io.ConcatDataset in next PR