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/python-utils/default.nix

@@ -0,0 +1,45 @@
+{ lib
+, buildPythonPackage
+, fetchFromGitHub
+, pytestCheckHook
+, six
+, pytest-mypy
+}:
+
+buildPythonPackage rec {
+  pname = "python-utils";
+  version = "3.1.0";
+
+  src = fetchFromGitHub {
+    owner = "WoLpH";
+    repo = pname;
+    rev = "v${version}";
+    sha256 = "sha256-+NgcVIDM9f2OKBpJNWlSyFxEONltPWJSWIu400/5RkQ=
+";
+  };
+
+  # disable coverage and linting
+  postPatch = ''
+    sed -i '/--cov/d' pytest.ini
+    sed -i '/--flake8/d' pytest.ini
+  '';
+
+  propagatedBuildInputs = [
+    six
+  ];
+
+  checkInputs = [
+    pytest-mypy
+    pytestCheckHook
+  ];
+
+  pytestFlagsArray = [
+    "_python_utils_tests"
+  ];
+
+  meta = with lib; {
+    description = "Module with some convenient utilities";
+    homepage = "https://github.com/WoLpH/python-utils";
+    license = licenses.bsd3;
+  };
+}