Remove python2 support

[c00kiemon5ter]

Signed-off-by: Ivan Kanakarakis ivan.kanak@gmail.com

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[spaceone]

:-(

[c00kiemon5ter]

I understand that people may not feel comfortable with this, but we have discussed it in the past and we had agreed to move on with this. I think it is time for everyone to move on as official support for Python2 is now almost over.