GitLab

The param was always passed with nullptr value, so remove it entirely.

Bug: None
Test: None, test cleanup.
Change-Id: If8cd3c4c7e0bd77fabbc545dcbd5fda69a9c0703
Reviewed-on: https://chromium-review.googlesource.com/1196143Reviewed-by: Karan Bhatia <karandeepb@chromium.org>
Commit-Queue: Istiaque Ahmed <lazyboy@chromium.org>
Cr-Commit-Position: refs/heads/master@{#587871}