rng-tools: Remove our customizations

The upstream rng-tools ships a systemd unit as a standard part of the
package now so we don't need to define our own custom one.

Change-Id: I8021b44621ac77a3562eb5ac895b0c85170039fc
Signed-off-by: William A. Kennington III <wak@google.com>
diff --git a/recipes-support/rng-tools/rng-tools/rngd.service b/recipes-support/rng-tools/rng-tools/rngd.service
deleted file mode 100644
index 7b0e9a7..0000000
--- a/recipes-support/rng-tools/rng-tools/rngd.service
+++ /dev/null
@@ -1,8 +0,0 @@
-[Unit]
-Description=Hardware RNG Entropy Gatherer Daemon
-
-[Service]
-ExecStart=@SBINDIR@/rngd -f
-
-[Install]
-WantedBy=multi-user.target
diff --git a/recipes-support/rng-tools/rng-tools_%.bbappend b/recipes-support/rng-tools/rng-tools_%.bbappend
deleted file mode 100644
index cda8e0b..0000000
--- a/recipes-support/rng-tools/rng-tools_%.bbappend
+++ /dev/null
@@ -1,17 +0,0 @@
-
-FILESEXTRAPATHS_prepend := "${THISDIR}/${PN}:"
-
-SRC_URI += "file://rngd.service"
-
-inherit systemd
-
-SYSTEMD_SERVICE_${PN} = "rngd.service"
-
-do_install_append() {
-    if ${@bb.utils.contains('DISTRO_FEATURES', 'systemd', 'true', 'false', d)}; then
-        install -d ${D}${systemd_unitdir}/system
-        install -m 644 ${WORKDIR}/rngd.service ${D}${systemd_unitdir}/system
-        sed -i -e 's,@SBINDIR@,${sbindir},g' ${D}${systemd_unitdir}/system/rngd.service
-    fi
-}
-