Remove /mnt/partner_partition

chromeos_shutdown

 #!/bin/sh
 
 # Copyright (c) 2009 The Chromium OS Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 # Shutdown is best-effort. We don't want to die on errors.
 set +e
 
 # Measure shutdown time. /var/log/metrics is created by chromeos_startup.
@@ skipping 36 matching lines @@
 # close to that point as we can be before stateful is unmounted).
 /sbin/crash_reporter --clean_shutdown
 
 # Lazy umount the tmpfs dirs under /var so we can immediately umount it.
 umount -n -l /var/tmp /var/run /var/lock
 umount -n /var /usr/local /home /mnt/stateful_partition
 if [ $? -ne 0 ] ; then
   mount > /mnt/stateful_partition/var/log/shutdown_stateful_umount_failure
   mount > /var/log/shutdown_stateful_umount_failure
 fi
-if [ -d /mnt/partner_partition/lost+found ]; then
-  umount -n /mnt/partner_partition
-fi
 
 # Just in case something didn't unmount properly above.
 sync
 
 # Ensure that we always claim success.
 exit 0