Revert "python: force install of updated pyopenssl"
Revert "python: force install of updated pyopenssl"

This reverts commit ec96d25402df943b66c8ed3eb0447ad7419208bc, because
our Python code does not have a direct dependency on pyopenssl.

pphaneuf/certificate-transparency,pphaneuf/certificate-transparency,google/certificate-transparency,RJPercival/certificate-transparency,pphaneuf/certificate-transparency,RJPercival/certificate-transparency,google/certificate-transparency,RJPercival/certificate-transparency,pphaneuf/certificate-transparency,google/certificate-transparency,google/certificate-transparency,RJPercival/certificate-transparency