Useless dependency on wheel

[SpecLad]

Environment information (required)

Not relevant (you don't even need to run Tensorboard to observe this).

Issue description

Inspecting the tensorboard wheel reveals that it depends on the wheel package:

$ bsdtar -xOf tensorboard-2.12.1-py3-none-any.whl tensorboard-2.12.1.dist-info/METADATA | grep wheel
Requires-Dist: wheel (>=0.26)

There seems to be no reason for this. I checked the source code, and I couldn't find any runtime usages of wheel. wheel doesn't even have an API, so it seems unlikely to be needed.

I would suggest removing it so that Tensorboard doesn't pull unnecessary packages into the environment.

[bileschi]

Indeed wheel is included as a runtime dependency in our runtime requirements.

tensorboard/tensorboard/pip_package/requirements.txt

Line 35 in 963afb7

wheel >= 0.26

Looks like we discussed removing wheel here - perhaps was a py2 vs. py3 thing. Apparently wheel is included in python3 now by default?

#5071 (comment)

[SpecLad]

wheel is not included by default, but that shouldn't be relevant, because you shouldn't require it regardless.

[groszewn]

The wheel dependency was removed as of 2.14.1.