Fixes missing SSH fingerprint display if --boot was used. (Closes: #679183) Remove a redundant unsetting of $MOUNT_POINT. Guard a potentially second call to the not idempotent unMountImage().
Fixes missing SSH fingerprint display if --boot was used. (Closes: #679183) Remove a redundant unsetting of $MOUNT_POINT. Guard a potentially second call to the not idempotent unMountImage().