Revert Diagnostic Output CLs.

This CL reverts the following commits, each of which contained temporary
debugging code:

0fa5a3d5052abb4af070109594c6bc85255f953b
3a5a4c0143dba99ca0a9e8eba54187c7f8d7e7dc
796ffe34ca4ddf546e8cb0c2b573301d65ce4ef3

TBR=kenrb@chromium.org

Bug: 882458
Change-Id: Icc16628b818b3bac326e63f86768129d123e464b
Reviewed-on: https://chromium-review.googlesource.com/1227657
Reviewed-by: James MacLean <wjmaclean@chromium.org>
Commit-Queue: James MacLean <wjmaclean@chromium.org>
Cr-Commit-Position: refs/heads/master@{#591602}
3 files changed