Remove IwTest annotation. am: 8e2f266d am: 4864344d am: c03aacbb am: 3840afa8

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/apps/Launcher3/+/23716002



Change-Id: I7e837ad952170d2bd8d2e614f72a35f74633f034
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>