[automerger skipped] Remove unused file. am: ab61422b4e -s ours am: b93859b1f4 -s ours

am skip reason: Change-Id I36ed1725165bafd8624a24e9e4fe9cd4f15a846e with SHA-1 3efb683750 is in history

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/apps/WallpaperPicker2/+/12829855

Change-Id: I3600570c95d4e1c7d2a0b7ca01042a3b31467259