lxc-auto: do not touch cgroups

Apparently it is no longer needed to mount systemd cgroup with cgroup v2
systems.

utils/lxc/files/lxc-auto.init

@@ -62,13 +62,7 @@ stop() {
 	fi
 }
 
-#Export systemd cgroups
 boot() {
-	if [ ! -d /sys/fs/cgroup/systemd ]; then
-		mkdir -p /sys/fs/cgroup/systemd
-		mount -t cgroup -o rw,nosuid,nodev,noexec,relatime,none,name=systemd cgroup /sys/fs/cgroup/systemd
-	fi
-
 	if [ ! -d /run ]; then
 		ln -s /var/run /run
 	fi