Remove more MemoryCoordinator leftovers

Bug: N/A
Change-Id: I9b9b79631024c338c139600fb3b35d9fce6ed43c
Reviewed-on: https://chromium-review.googlesource.com/c/1491745
Commit-Queue: Kenichi Ishibashi <bashi@chromium.org>
Commit-Queue: Kentaro Hara <haraken@chromium.org>
Auto-Submit: Kenichi Ishibashi <bashi@chromium.org>
Reviewed-by: Kentaro Hara <haraken@chromium.org>
Cr-Commit-Position: refs/heads/master@{#636323}
2 files changed