[S] Change in coreboot[master]: util/docker/coreboot-sdk: Remove Python 2 package

[Michael Niewöhner (Code Review)]

Attention is currently required from: Felix Singer, Jason Glenesk, Martin L Roth, Angel Pons, Arthur Heymans, Elyes Haouas.

Michael Niewöhner has posted comments on this change. ( https://review.coreboot.org/c/coreboot/+/71711 )

Change subject: util/docker/coreboot-sdk: Remove Python 2 package
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Patch Set 6: Code-Review+2

(1 comment)

File util/docker/coreboot-sdk/Dockerfile:

https://review.coreboot.org/c/coreboot/+/71711/comment/2fa514e0_5dac12a9 
PS3, Line 85: && update-alternatives --install /usr/bin/python python /usr/bin/python3 1 \
> It symlinks /usr/bin/python to python3. That's already default now.

That doesn't seem to be correct. The symlink was removed and can be readded manually by installing `python-is-python3`. See https://wiki.debian.org/Python