remove unused iterator

Bug: 
Change-Id: I7709efd87b3a79009bd7de262cc76220d8078676
Reviewed-on: https://chromium-review.googlesource.com/754663
Reviewed-by: Lei Zhang <thestig@chromium.org>
Commit-Queue: Jianzhou Feng <jzfeng@chromium.org>
Cr-Commit-Position: refs/heads/master@{#514311}

CrOS-Libchrome-Original-Commit: 53c16f8b78dc0c33882aa020ab2fd84b11a12efb
1 file changed
tree: e72451162320429e6b11685ba775fa12d90183f9
  1. base/
  2. build/
  3. components/
  4. dbus/
  5. device/
  6. ipc/
  7. mojo/
  8. testing/
  9. third_party/
  10. ui/