The standard method to remove backout members is to COMMIT the package that created the members. In this case Endevor is no longer on the LPAR that the dataset exists. So the COMMIT does not delete the members.
How can these backout members be manually deleted?
Release : ALL SUPPORTED RELEASES
It is strongly recommended that the Endevor Package Backout Members created by Endevor Package DO NOT get deleted manually, they should only be removed/deleted by using the Endevor Package COMMIT or Endevor Package DELETE Option.
If there is a need to manually remove these members, there are 2 methods that can be used:
ISPF 3.4 or 3.1 to delete the members. Go to the selection list of the members put a D next to the members.
Use IEBCOPY to copy only the non backout members to a new dataset. Then delete the old dataset and rename the new dataset to the old dataset name.
**NOTE: If this is a linklisted dataset please the follow the instructions in this Knowledge Document: https://knowledge.broadcom.com/external/article/244898/after-applying-endevor-maintenance-cant.html
Sample JCL: It is expected to complete with a RC=4. Ensure the correct members have been copied and backout members were not copied.
//COPY EXEC PGM=IEBCOPY
//SYSPRINT DD SYSOUT=*
//IN1 DD DISP=SHR,DSN=old.dsn
//OUT1 DD DSN=old.dsn.COPY,
//SYSIN DD *
It is recommended to contact Broadcom Endevor Support prior to performing any delete of the Package backout members and/or attempting the IEBCOPY.