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/matrix-synapse/plugins/mjolnir-antispam.nix

@@ -0,0 +1,32 @@
+{ lib, buildPythonPackage, fetchFromGitHub, matrix-synapse }:
+
+buildPythonPackage rec {
+  pname = "matrix-synapse-mjolnir-antispam";
+  version = "1.4.2";
+
+  src = fetchFromGitHub {
+    owner = "matrix-org";
+    repo = "mjolnir";
+    rev = "refs/tags/v${version}";
+    sha256 = "sha256-887azmXT5PGpcOqtWtKwdoyEtsXGm5DzpNRgEMlgSfM=";
+  };
+
+  sourceRoot = "./source/synapse_antispam";
+
+  propagatedBuildInputs = [ matrix-synapse ];
+
+  doCheck = false; # no tests
+  pythonImportsCheck = [ "mjolnir" ];
+
+  meta = with lib; {
+    description = "AntiSpam / Banlist plugin to be used with mjolnir";
+    longDescription = ''
+      Primarily meant to block invites from undesired homeservers/users,
+      Mjolnir's Synapse module is a way to interpret ban lists and apply
+      them to your entire homeserver.
+    '';
+    homepage = "https://github.com/matrix-org/mjolnir#synapse-module";
+    license = licenses.asl20;
+    maintainers = with maintainers; [ jojosch ];
+  };
+}