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/cssselect2/default.nix

@@ -0,0 +1,40 @@
+{ lib
+, buildPythonPackage
+, flit-core
+, pythonOlder
+, fetchPypi
+, tinycss2
+, pytestCheckHook
+}:
+
+buildPythonPackage rec {
+  pname = "cssselect2";
+  version = "0.5.0";
+  format = "pyproject";
+  disabled = pythonOlder "3.5";
+
+  src = fetchPypi {
+    inherit pname version;
+    sha256 = "sha256-2Yp7vdjrxGCTJ5GV1mmjNZvVoj+QwZ6CwZ2e7vMz5hc=";
+  };
+
+  postPatch = ''
+    sed -i '/^addopts/d' pyproject.toml
+  '';
+
+  nativeBuildInputs = [
+    flit-core
+  ];
+
+  propagatedBuildInputs = [ tinycss2 ];
+
+  checkInputs = [ pytestCheckHook ];
+
+  pythonImportsCheck = [ "cssselect2" ];
+
+  meta = with lib; {
+    description = "CSS selectors for Python ElementTree";
+    homepage = "https://github.com/Kozea/cssselect2";
+    license = licenses.bsd3;
+  };
+}