[automerger skipped] Fix scrollbar keeping a reference to the adapter am: a59fab7c15 -s ours am: 53528131fd -s ours

am skip reason: Change-Id I4c649c59236bf406ae721092de3984b84cb8f1ac with SHA-1 bff37a7823 is in history

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/apps/Car/libs/+/13220711

MUST ONLY BE SUBMITTED BY AUTOMERGER

Change-Id: I003b74039c57e54acaa75c7aaae596355252febb