vulnix: use zodb from pythonPackages

pkgs/tools/security/vulnix/default.nix

@@ -1,10 +1,6 @@
-{ stdenv, pythonPackages, fetchurl, callPackage, nix, }:
+{ stdenv, pythonPackages, fetchurl, callPackage, nix }:
 
-let
-  external = callPackage ./requirements.nix {
-    inherit pythonPackages;
-  };
-in pythonPackages.buildPythonApplication rec{
+pythonPackages.buildPythonApplication rec {
   name = "${pname}-${version}";
   pname = "vulnix";
   version = "1.2.2";
@@ -28,7 +24,7 @@ in pythonPackages.buildPythonApplication rec{
     lxml
     pyyaml
     requests
-    external.zodb
+    zodb
   ]);
 
   checkPhase = "py.test";

pkgs/tools/security/vulnix/requirements.nix

@@ -1,47 +0,0 @@
-{ pythonPackages, fetchurl, stdenv }:
-
-rec {
-  zodb = pythonPackages.buildPythonPackage {
-    name = "ZODB-5.2.0";
-    src = fetchurl {
-      url = "https://pypi.python.org/packages/1e/47/2f17075ca94a4a537ebd8e195c458456ef49aa67355ec805e478b8ad1959/ZODB-5.2.0.tar.gz";
-      sha256 = "11l495lyym2fpvalj18yvcqwnsp8gyp18sgv5v575k4s2035lz0x";
-    };
-    doCheck = false;
-    propagatedBuildInputs = [
-      transaction
-    ] ++ (with pythonPackages; [
-      six
-      wheel
-      zope_interface
-      zodbpickle
-      zconfig
-      persistent
-      zc_lockfile
-      BTrees
-    ]);
-
-    meta = with stdenv.lib; {
-      license = licenses.zpl21;
-      description = "Zope Object Database: object database and persistence";
-    };
-  };
-
-  transaction = pythonPackages.buildPythonPackage {
-    name = "transaction-2.0.3";
-    src = fetchurl {
-      url = "https://pypi.python.org/packages/8c/af/3ffafe85bcc93ecb09459f3f2bd8fbe142e9ab34048f9e2774543b470cbd/transaction-2.0.3.tar.gz";
-      sha256 = "67bfb81309ba9717edbb2ca2e5717c325b78beec0bf19f44e5b4b9410f82df7f";
-    };
-    propagatedBuildInputs = with pythonPackages; [
-      zope_interface
-      six
-      wheel
-      mock
-    ];
-    meta = with stdenv.lib; {
-      license = licenses.zpl21;
-      description = "Transaction management for Python";
-    };
-  };
-}