Merge "Delete NsdChat sample" into main am: 72ff9e98f0 am: 8d1857a3f4

Original change: https://android-review.googlesource.com/c/platform/development/+/3102698

Change-Id: Ie46f395b1bdb67ce78dd29a579ab6bd53a749d0a
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>