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/heisenbridge/default.nix

@@ -0,0 +1,35 @@
+{ lib, fetchFromGitHub, fetchpatch, python3 }:
+python3.pkgs.buildPythonApplication rec {
+  pname = "heisenbridge";
+  version = "1.13.0";
+
+  src = fetchFromGitHub {
+    owner = "hifi";
+    repo = pname;
+    rev = "refs/tags/v${version}";
+    sha256 = "sha256-3YCYLhJqZAWIwpwOd8J1+uYsxw0q6jQy35Vp+ttVKhI=";
+  };
+
+  postPatch = ''
+    echo "${version}" > heisenbridge/version.txt
+  '';
+
+  propagatedBuildInputs = with python3.pkgs; [
+    aiohttp
+    irc
+    mautrix
+    python-socks
+    pyyaml
+  ];
+
+  checkInputs = with python3.pkgs; [
+    pytestCheckHook
+  ];
+
+  meta = with lib; {
+    description = "A bouncer-style Matrix-IRC bridge.";
+    homepage = "https://github.com/hifi/heisenbridge";
+    license = licenses.mit;
+    maintainers = [ maintainers.sumnerevans ];
+  };
+}