Legacy NFS Source
Legacy NFS Sources were brought into FamilySearch at the request of the original submitter in response to a letter sent by FamilySearch in the year 2012. They are attached to the people.
"Legacy NFS Source" can be removed by editing the source on the persons page. They can be removed from the Source Box by clicking on the small box to the lower left of the Create Source button, then clicking on the Move button and the Remove Source box in the drop down menu. The system will delete one page at a time.
For more detailed information see Family Tree: Sourcing - Legacy Sources.