gnome-settings-daemon: remove obsolte $(vopt_if systemd)

srcpkgs/gnome-settings-daemon/template

@@ -12,7 +12,7 @@ makedepends="colord-devel libxklavier-devel
  ibus-devel cups-devel libgudev-devel upower-devel polkit-devel
  libgweather-devel geoclue2-devel NetworkManager-devel
  gsettings-desktop-schemas-devel"
-depends="pulseaudio hicolor-icon-theme $(vopt_if systemd upower)"
+depends="pulseaudio hicolor-icon-theme"
 short_desc="GNOME settings daemon"
 maintainer="Enno Boland <gottox@voidlinux.eu>"
 homepage="http://www.gnome.org"