Merge "[CDM] remove platform version exchange protocol" into udc-dev am: c111807c

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/23048343



Change-Id: I4bce6a65c1246b6313f527cdfe1cc750395a8e94
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>