recipe: update 'cryptography' and rm unnecessary dependencies #2130
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Update the
cryptography
recipe to a newer version, and remove unnecessary dependencies.idna
no longer needed since version 2.5asn1crypto
no longer needed since version 2.8enum34
is just a backport of python 3.4+ functionalityipaddress
is just a backport of python 3.3+ functionality(I am assuming py2 and old versions of py3 are no longer supported)