Remove /cgroup cleanup code from postinst.

debian/changelog

@@ -13,6 +13,7 @@ systemd (35-1) UNRELEASED; urgency=low
   * Add Build-Depends on intltool.
   * Do a one-time migration of the hwclock configuration. If UTC is set to
     "no" in /etc/default/rcS, create /etc/adjtime and add the "LOCAL" setting.
+  * Remove /cgroup cleanup code from postinst.
 
  -- Tollef Fog Heen <tfheen@debian.org>  Wed, 14 Sep 2011 08:25:17 +0200
 

debian/systemd.postinst

@@ -4,18 +4,6 @@ set -e
 
 if [ -n "$2" ]; then
     systemctl daemon-reexec || true
-
-    if dpkg --compare-versions "$2" lt "11-2"; then
-        if [ -e /proc/mounts ]; then
-            mounts=$(awk '/ \/cgroup/ {print $2}' < /proc/mounts | sort -r)
-            for m in $mounts; do
-                umount "$m" || true;
-            done
-        fi
-        if [ -d /cgroup ]; then
-            rmdir --ignore-fail-on-non-empty /cgroup
-        fi
-    fi
 fi
 
 # Do a one-time migration of the local time setting