Remove shuffling for the test dataset

[VladimirStarostenkov]

In order to have a good picture with https://projector.tensorflow.org/

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[VladimirStarostenkov]

@googlebot I signed it!

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[seanpmorgan]

Hi @VladimirStarostenkov welcome to addons. Thanks for the contribution there is no need for this to be shuffled!