Previously, mount path was never removed because scheduled task
was cancelled when PX is down. And NFS mount does not pass on the
trashlocation for symlink removal. This commit adds the parameter
and more logging for when removal happens.

Testing: local testing

JIRA: PWX-27439

Signed-off-by: dahuang <dahuang@purestorage.com>

Signed-off-by: dahuang <dahuang@purestorage.com>