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The crash that these were meant to help debug has been long fixed.
They are no longer needed.

Bug: 770886
Change-Id: I7abf99be6cd00b9ae9a99934edaca95fe48e638d
Reviewed-on: https://chromium-review.googlesource.com/1174992Reviewed-by: Lei Zhang <thestig@chromium.org>
Commit-Queue: Stephen McGruer <smcgruer@chromium.org>
Cr-Commit-Position: refs/heads/master@{#583341}