GitLab

utils.promise had a few different issues, and it's only used in tests.
Just remove it.

Bug: 745020
Change-Id: Ic6306103d5d17f5cceb371f4b1f8362e7234b27f
Reviewed-on: https://chromium-review.googlesource.com/575518Reviewed-by: Istiaque Ahmed <lazyboy@chromium.org>
Commit-Queue: Devlin <rdevlin.cronin@chromium.org>
Cr-Commit-Position: refs/heads/master@{#487358}