[LU-8681] osd: ignore ENODATA during unlink agent parent

• Type: Bug
• Resolution: Fixed
• Priority: Minor
• Fix Version/s: Lustre 2.9.0
• Severity: 3
• Assignee: Niu Yawei (Inactive)
• Reporter: Niu Yawei (Inactive)

Description

If the directory is created before 2.0, there are no LMA
for the directory, then osd_delete_from_remote_parent()
will return ENODATA. So we should ignore ENODATA in this
case otherwise it will cause unlink fails.