Tests: remove dl0 tests from nightly definition
Commit fca1167af48651c3454c33c77ef28ec333220040 removed the following tests
from ipatests/test_integration/test_replica_promotion.py:
TestReplicaPromotionLevel0
TestKRAInstall
TestCAInstall
TestReplicaManageCommands
TestOldReplicaWorksAfterDomainUpgrade
but the nightly definition was not updated accordingly.
The fix removes the unexisting tests from nightly.
Related to https://pagure.io/freeipa/issue/7689
Reviewed-By: Tibor Dudlak <tdudlak@redhat.com>