Delete function that's unused after https://chromium-review.googlesource.com/#/c/299691/
Delete function that's unused after https://chromium-review.googlesource.com/#/c/299691/

BUG=505316

Change-Id: Iac794dc8a13f9aabc6f53e34dab8750dc1ed994a
Reviewed-on: https://chromium-review.googlesource.com/302830
Reviewed-by: Jamie Madill <7e492b4f1c8458024932de3ba475cbf015424c30@chromium.org>
Tested-by: Jamie Madill <7e492b4f1c8458024932de3ba475cbf015424c30@chromium.org>

domokit/waterfall,mikolalysenko/angle,ecoal95/angle,mybios/angle,ppy/angle,mybios/angle,ecoal95/angle,mlfarrell/angle,mikolalysenko/angle,ppy/angle,domokit/waterfall,ecoal95/angle,mlfarrell/angle,mlfarrell/angle,MSOpenTech/angle,MSOpenTech/angle,mybios/angle,MSOpenTech/angle,ppy/angle,MSOpenTech/angle,ecoal95/angle,mybios/angle,ppy/angle,mikolalysenko/angle,mlfarrell/angle,mikolalysenko/angle,ecoal95/angle