[AF] Enable Wallet data USS implementation by default

Bug: 853688
Change-Id: I3026a36d73cf32b713c8e647fd23abe922f0387c
Reviewed-on: https://chromium-review.googlesource.com/c/1377418
Reviewed-by: Jesse Doherty <jwd@chromium.org>
Reviewed-by: Marc Treib <treib@chromium.org>
Commit-Queue: Jan Krcal <jkrcal@chromium.org>
Cr-Commit-Position: refs/heads/master@{#620828}
2 files changed