dreport: Remove IBM and OpenPower plugin dump scripts

IBM and OpenPower plugins are being moved to openpower-debug-collector
repository. So these scripts can be removed from here.

Recipe changes to remove installation of these scripts from this
repository.https://gerrit.openbmc.org/c/openbmc/openbmc/+/71687/



Tested:
Verified that scripts are getting installed correctly from
openpower-debug-collector instead of this repo.

Change-Id: Ie9b2bbfc6ec94aa27f49d635be40ec41ecf95763
Signed-off-by: Gopichand Paturi <gopichandpaturi@gmail.com>