PRGJRNRCV – Purge Journal Receivers by Date
Purging, or deleting, journal receivers is easy peasy with PRGJRNRCV:

The completion message might look like this:
PRGJRNRCV JRNRCV(DBUAUD/DBU*)
Purge Journal Receivers completed with 0000517 processed.
More info on Journals and Receivers in the Nick Litten Blog: