uboot: (firmwareOdroidC2/C4) don't invoke patch tool, use patches = [] instead

https://github.com/NixOS/nixpkgs/blob/master/pkgs/stdenv/generic/setup.sh#L948
this can do it nicely.

Signed-off-by: Anton Arapov <anton@deadbeef.mx>

pkgs/development/python-modules/azure-mgmt-datafactory/default.nix

@@ -0,0 +1,40 @@
+{ lib
+, buildPythonPackage
+, fetchPypi
+, msrest
+, msrestazure
+, azure-common
+, azure-mgmt-core
+, pythonOlder
+}:
+
+buildPythonPackage rec {
+  pname = "azure-mgmt-datafactory";
+  version = "2.6.0";
+  format = "setuptools";
+
+  disabled = pythonOlder "3.6";
+
+  src = fetchPypi {
+    inherit pname version;
+    extension = "zip";
+    hash = "sha256-mvZw+GOnOuDNDb4k8PY38IHBvSekYCDdIGUcGCJwWss=";
+  };
+
+  propagatedBuildInputs = [
+    msrest
+    msrestazure
+    azure-common
+    azure-mgmt-core
+  ];
+
+  # has no tests
+  doCheck = false;
+
+  meta = with lib; {
+    description = "This is the Microsoft Azure Data Factory Management Client Library";
+    homepage = "https://github.com/Azure/azure-sdk-for-python";
+    license = licenses.mit;
+    maintainers = with maintainers; [ maxwilson ];
+  };
+}