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/etcd/default.nix

@@ -0,0 +1,36 @@
+{ lib
+, buildPythonPackage
+, fetchFromGitHub
+, simplejson
+, pytz
+, requests
+}:
+
+buildPythonPackage rec {
+  pname = "etcd";
+  version = "2.0.8";
+
+  # PyPI package is incomplete
+  src = fetchFromGitHub {
+    owner = "dsoprea";
+    repo = "PythonEtcdClient";
+    rev = version;
+    sha256 = "sha256-h+jYIRSNdrGkW3tBV1ifIDEXU46EQGyeJoz/Mxym4pI=";
+  };
+
+  patchPhase = ''
+    sed -i -e '13,14d;37d' setup.py
+  '';
+
+  propagatedBuildInputs = [ simplejson pytz requests ];
+
+  # No proper tests are available
+  doCheck = false;
+
+  meta = with lib; {
+    description = "A Python etcd client that just works";
+    homepage = "https://github.com/dsoprea/PythonEtcdClient";
+    license = licenses.gpl2;
+  };
+
+}