Proximity Auth: Remove kMultiDeviceApi flagging from RDLI.

R=hansberry@chromium.org

Bug: 899324
Test: none
Change-Id: Ib749683f19dad9fad2e0917673f319acb8bb3983
Reviewed-on: https://chromium-review.googlesource.com/c/1325310
Commit-Queue: James Hawkins <jhawkins@chromium.org>
Reviewed-by: Ryan Hansberry <hansberry@chromium.org>
Cr-Commit-Position: refs/heads/master@{#606500}
3 files changed