Merge "Drop unused IAttestationManager interface" into main am: 8548e78a67 am: 6a05ed628f

Original change: https://android-review.googlesource.com/c/platform/system/security/+/3310917

Change-Id: I406238117bea39ed8379a21b6f146d51bc3d56a1
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>