This moves the warnings to InfoLog.

Bug: chromium:931294

Change-Id: I1627aa63bdda6f92fc89b8921eb260302ba9063f
Reviewed-on: https://chromium-review.googlesource.com/c/1469721Reviewed-by: Geoff Lang <geofflang@chromium.org>
Commit-Queue: Jie A Chen <jie.a.chen@intel.com>