python2.pkgs: move expressions into python2-modules/ folder

Another step in further separating python2 from python3.

pkgs/development/python-modules/libcloud/2.nix

@@ -1,39 +0,0 @@
-{ lib
-, buildPythonPackage
-, fetchPypi
-, isPy27
-, mock
-, pycrypto
-, requests
-, pytest-runner
-, pytest
-, requests-mock
-, typing
-, backports_ssl_match_hostname
-}:
-
-buildPythonPackage rec {
-  pname = "apache-libcloud";
-  version = "2.8.3";
-
-  src = fetchPypi {
-    inherit pname version;
-    sha256 = "70096690b24a7832cc5abdfda1954b49fddc1c09a348a1e6caa781ac867ed4c6";
-  };
-
-  checkInputs = [ mock pytest pytest-runner requests-mock ];
-  propagatedBuildInputs = [ pycrypto requests ]
-    ++ lib.optionals isPy27 [ typing backports_ssl_match_hostname ];
-
-  preConfigure = "cp libcloud/test/secrets.py-dist libcloud/test/secrets.py";
-
-  # requires a certificates file
-  doCheck = false;
-
-  meta = with lib; {
-    description = "A unified interface to many cloud providers";
-    homepage = "https://libcloud.apache.org/";
-    license = licenses.asl20;
-  };
-
-}