Revert "[task scheduler] Logging to diagnose idle Nexus6p bots."
Revert "[task scheduler] Logging to diagnose idle Nexus6p bots."

This reverts commit 624962f96b189621d094d17ecb8a0d850db42359.

Reason for revert: Nexus6p bots are fine after restart, but PixelCs are now not being scheduled. I'm going to redo the logging and then resubmit.

Original change's description:
> [task scheduler] Logging to diagnose idle Nexus6p bots.
> 
> BUG=skia:
> 
> Change-Id: I47c1381285818fcdaf74dc08bda9a81062ebfa71
> Reviewed-on: https://skia-review.googlesource.com/5102
> Commit-Queue: Ben Wagner <3ef7217be91069877d94f7907ce5479000772cd3@google.com>
> Reviewed-by: Kevin Lubick <kjlubick@google.com>
> 

TBR=3ef7217be91069877d94f7907ce5479000772cd3@google.com,kjlubick@google.com,borenet@google.com,reviews@skia.org
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true

Change-Id: I6768bc31b38b8cf14f61a2d50292a1b820800765
Reviewed-on: https://skia-review.googlesource.com/5122
Commit-Queue: Ben Wagner <3ef7217be91069877d94f7907ce5479000772cd3@google.com>
Reviewed-by: Ben Wagner <3ef7217be91069877d94f7907ce5479000772cd3@google.com>

google/skia-buildbot,google/skia-buildbot,google/skia-buildbot,google/skia-buildbot,google/skia-buildbot,google/skia-buildbot,google/skia-buildbot,google/skia-buildbot