Remove redundant code and update the unit test for stack function

awslabs / keras-apache-mxnet

[DEPRECATED] Amazon Deep Learning's Keras with Apache MXNet support

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Closed pjelement closed 4 years ago

pjelement commented 4 years ago

Remove redundant code and update the unit test for stack function

Stack does not work correct when set axis to -1.

[ Y ] This PR requires new unit tests [y/n] (make sure tests are included)
[ N ] This PR requires to update the documentation [y/n] (make sure the docs are up-to-date)
[ N ] This PR is backwards compatible [y/n]
[ N ] This PR changes the current API [y/n]