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/pytest-xprocess/default.nix

@@ -0,0 +1,37 @@
+{ lib, buildPythonPackage, fetchPypi
+, psutil
+, pytest
+, setuptools-scm
+}:
+
+buildPythonPackage rec {
+  pname = "pytest-xprocess";
+  version = "0.18.1";
+
+  src = fetchPypi {
+    inherit pname version;
+    sha256 = "fd9f30ed1584b5833bc34494748adf0fb9de3ca7bacc4e88ad71989c21cba266";
+  };
+
+  nativeBuildInputs = [ setuptools-scm ];
+
+  buildInputs = [ pytest ];
+
+  propagatedBuildInputs = [ psutil ];
+
+  # Remove test QoL package from install_requires
+  postPatch = ''
+    substituteInPlace setup.py \
+      --replace "'pytest-cache', " ""
+  '';
+
+  # There's no tests in repo
+  doCheck = false;
+
+  meta = with lib; {
+    description = "Pytest external process plugin";
+    homepage = "https://github.com/pytest-dev";
+    license = licenses.mit;
+    maintainers = with maintainers; [ jonringer ];
+  };
+}