duplicity: Disable pydrive2 support

It does not currently work due to pyopenssl incompatibility.

+2 -1
+2 -1
pkgs/by-name/du/duplicity/package.nix
··· 88 88 paramiko 89 89 pyasn1 90 90 pycrypto 91 - pydrive2 91 + # Currently marked as broken. 92 + # pydrive2 92 93 future 93 94 ] 94 95 ++ paramiko.optional-dependencies.invoke;