Remove one cert from KT list am: b50d92d8b0

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/apps/CarrierConfig/+/18567584

Change-Id: I3964d6f75e614ff340ef5a9ee90520075ebf72f7
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>