Smart Lock: Remove unused strings.

R=hansberry@chromium.org

Bug: 899324
Test: none
Change-Id: Ib1c2d571dffddf742276c28875275abe790724f1
Reviewed-on: https://chromium-review.googlesource.com/c/1321149
Commit-Queue: James Hawkins <jhawkins@chromium.org>
Reviewed-by: Ryan Hansberry <hansberry@chromium.org>
Cr-Commit-Position: refs/heads/master@{#606551}
1 file changed