Including TF significantly increases the size of default Beam container images. Given that some Beam users use other ML framework, including TF but not other, equally large dependencies, seems less obvious.

I suggest we remove TF for now, which shaves almost 1.5 GB from unpacked image.

If you have been negatively affected by this change, please comment on #20605 - we would like to collect user input to prioritize this effort accordingly.

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