Merge "Remove bufferhub support from libgui." am: 79aca92987

Original change: https://android-review.googlesource.com/c/platform/frameworks/native/+/2239057

Change-Id: I8e3f59d173c038623810d30f944d58cc662a11f0
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>