openrazer-meta: drop system_groups trigger

Now that we have plugdev as a system group, we don't need to create it here.

srcpkgs/openrazer-meta/template

@@ -1,7 +1,7 @@
 # Template file for 'openrazer-meta'
 pkgname=openrazer-meta
 version=3.0.1
-revision=2
+revision=3
 wrksrc="openrazer-${version}"
 build_style=gnu-makefile
 make_install_target="setup_dkms udev_install daemon_install xdg_install
@@ -36,7 +36,6 @@ openrazer-driver-dkms_package() {
 	short_desc="Kernel driver for Razer devices (DKMS-variant)"
 	depends="dkms"
 	dkms_modules="openrazer-driver $version"
-	system_groups="plugdev"
 	pkg_install() {
 		vmove usr/lib/udev
 		vmove usr/src