Remove pycrypto dep on 0.12.2

[DropD]

No description provided.

[giovannipizzi]

Thanks!

[giovannipizzi]

@DropD there are some pre-commit failures (possibly a different version of yapf?) Could you fix these? Also, please assign also someone else as I won't be able to check in the next few weeks

[sphuber]

@DropD pre-commit is still failing due to requirements_for_rtd.txt discrepancy

[codecov-io]

Codecov Report

Merging #1754 into release_v0.12.2 will not change coverage.
The diff coverage is n/a.

@@               Coverage Diff                @@
##           release_v0.12.2    #1754   +/-   ##
================================================
  Coverage            54.48%   54.48%           
================================================
  Files                  246      246           
  Lines                32441    32441           
================================================
  Hits                 17677    17677           
  Misses               14764    14764

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