Merge "SF: Remove HWC plumbing for virtual display mirror" into sc-v2-dev am: 6a80d3f1af am: fd169c8a1b

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/native/+/15355090

Change-Id: I8c0a394ef807da031d9f29fce1edc47810d10d74