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/monitoring/unifi-poller/default.nix

@@ -0,0 +1,30 @@
+{ lib, buildGoModule, fetchFromGitHub }:
+
+buildGoModule rec {
+  pname = "unifi-poller";
+  version = "2.1.3";
+
+  src = fetchFromGitHub {
+    owner = "unifi-poller";
+    repo = "unifi-poller";
+    rev = "v${version}";
+    sha256 = "sha256-xh9s1xAhIeEmeDprl7iPdE6pxmxZjzgMvilobiIoJp0=";
+  };
+
+  vendorSha256 = "sha256-HoYgBKTl9HIMVzzzNYtRrfmqb7HCpPHVPeR4gUXneWk=";
+
+  ldflags = [
+    "-w" "-s"
+    "-X github.com/prometheus/common/version.Branch=master"
+    "-X github.com/prometheus/common/version.BuildDate=unknown"
+    "-X github.com/prometheus/common/version.Revision=${src.rev}"
+    "-X github.com/prometheus/common/version.Version=${version}-0"
+  ];
+
+  meta = with lib; {
+    description = "Collect ALL UniFi Controller, Site, Device & Client Data - Export to InfluxDB or Prometheus";
+    homepage = "https://github.com/unifi-poller/unifi-poller";
+    license = licenses.mit;
+    maintainers = with maintainers; [ elseym ];
+  };
+}