Remove libvirt package

Nova services are now running in the containers but we still have
libvirt packages installed on Overcloud systems. This change removes
libvirt packages that are not needed any more.

Depends-On: https://review.opendev.org/702836
Change-Id: I1220eda28cb8d21098c26aa548305004567e6e03
Closes-Bug: 1842932
(cherry picked from commit 359bc74c76)

elements/overcloud-compute/install.d/package-installs-overcloud-compute

@@ -1,6 +1,5 @@
 dpdk_package
 driverctl_package
-libvirt_package
 nfs_package
 chrony_package
 pacemaker_remote_package

elements/overcloud-compute/pkg-map

@@ -2,7 +2,6 @@
   "default": {
     "dpdk_package": "dpdk",
     "driverctl_package": "driverctl",
-    "libvirt_package": "libvirt",
     "nfs_package": "nfs-utils",
     "chrony_package": "chrony",
     "pacemaker_remote_package": "pacemaker-remote",

elements/overcloud-compute/post-install.d/51-remove-libvirt-default-net

@@ -1,6 +0,0 @@
-#!/bin/bash
-
-set -eux
-set -o pipefail
-
-rm -f /etc/libvirt/qemu/networks/autostart/default.xml

elements/overcloud-controller/post-install.d/51-disable-libvirtd-service

@@ -1,7 +0,0 @@
-#!/bin/bash
-
-set -eux
-set -o pipefail
-
-systemctl stop libvirtd
-systemctl disable libvirtd

releasenotes/notes/remove-libvirt-deps-8994d3d325af0765.yaml

@@ -0,0 +1,6 @@
+---
+other:
+  - |
+    Nova services are now running in the containers but we have still
+    a lot of libvirt packages installed on Overcloud systems.
+    This change remove unnecessary libvirt packages.