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/servers/radicale/3.x.nix

@@ -0,0 +1,41 @@
+{ lib, python3, fetchFromGitHub, nixosTests }:
+
+python3.pkgs.buildPythonApplication rec {
+  pname = "radicale";
+  version = "3.1.7";
+
+  src = fetchFromGitHub {
+    owner = "Kozea";
+    repo = "Radicale";
+    rev = "v${version}";
+    hash = "sha256-D/JPq8p+iLmm0XaoXvNonRHr9PIhQ11yTDqur3DiYdc=";
+  };
+
+  postPatch = ''
+    sed -i '/addopts/d' setup.cfg
+  '';
+
+  propagatedBuildInputs = with python3.pkgs; [
+    defusedxml
+    passlib
+    vobject
+    python-dateutil
+    pytz # https://github.com/Kozea/Radicale/issues/816
+  ] ++ passlib.optional-dependencies.bcrypt;
+
+  checkInputs = with python3.pkgs; [
+    pytestCheckHook
+    waitress
+  ];
+
+  passthru.tests = {
+    inherit (nixosTests) radicale;
+  };
+
+  meta = with lib; {
+    homepage = "https://radicale.org/v3.html";
+    description = "CalDAV and CardDAV server";
+    license = licenses.gpl3Plus;
+    maintainers = with maintainers; [ dotlambda erictapen ];
+  };
+}