We have switched to using Planet RPM package from EPEL. Update update.pl on planet.webkit.org with new location of the Planet executable and remove the Planet software from WebKit repo.
<rdar://problem/102446791>
Pull request: https://github.com/WebKit/WebKit/pull/6576
Pull request: https://github.com/WebKit/WebKit/pull/6580
Committed 256793@main (f7aa8bf3ef9a): <https://commits.webkit.org/256793@main> Reviewed commits have been landed. Closing PR #6580 and removing active labels.