Reduce messages related to systemd in the logs

[nixpanic]

Describe the feature you'd like to have

kubernetes/kubernetes#111083 already reduced the systemd related logging a lot. CephFS does not have any systemd logging at all anymore.\

RBD calls the k8s.io/mount-utils function FormatAndMount(), which still causes some systemd log messages. With the enhancement in kubernetes/kubernetes#111218, a NewWithoutSystemd() function has been proposed, and Ceph-CSI could benefit from that.

What is the value to the end user? (why is it a priority?)

No more confusing systemd log messages, see #2890 for an example of a user that reports an issue about it.

How will we know we have a good solution? (acceptance criteria)

No more systemd log messages. Ceph-CSI does not want to use systemd in any case.

Additional context

Example of the changes that are required once kubernetes/kubernetes#111218 has been merged+released:

diff --git a/internal/rbd/driver/driver.go b/internal/rbd/driver/driver.go
index 5019d02cc..2fed92be0 100644
--- a/internal/rbd/driver/driver.go
+++ b/internal/rbd/driver/driver.go
@@ -73,7 +73,7 @@ func NewReplicationServer(c *rbd.ControllerServer) *rbd.ReplicationServer {
 
 // NewNodeServer initialize a node server for rbd CSI driver.
 func NewNodeServer(d *csicommon.CSIDriver, t string, topology map[string]string) (*rbd.NodeServer, error) {
-       mounter := mount.New("")
+       mounter := mount.NewWithoutSystemd("")
 
        return &rbd.NodeServer{
                DefaultNodeServer: csicommon.NewDefaultNodeServer(d, t, topology),
diff --git a/internal/util/util.go b/internal/util/util.go
index 4c36e3679..3207fa148 100644
--- a/internal/util/util.go
+++ b/internal/util/util.go
@@ -321,7 +321,7 @@ func checkDirExists(p string) bool {
 
 // IsMountPoint checks if the given path is mountpoint or not.
 func IsMountPoint(p string) (bool, error) {
-       dummyMount := mount.New("")
+       dummyMount := mount.NewWithoutSystemd("")
        notMnt, err := dummyMount.IsLikelyNotMountPoint(p)
        if err != nil {
                return false, err
@@ -344,7 +344,7 @@ func ReadMountInfoForProc(proc string) ([]mount.MountInfo, error) {
 
 // Mount mounts the source to target path.
 func Mount(source, target, fstype string, options []string) error {
-       dummyMount := mount.New("")
+       dummyMount := mount.NewWithoutSystemd("")
 
        return dummyMount.MountSensitiveWithoutSystemd(source, target, fstype, options, nil)
 }

[nixpanic]

The k8s.io/mount-utils PR has been merged, the change wiill be included in Kubernetes 1.25 (1st pre-release scheduled for tomorrow).