Instrument TestPing failure.
Added some diagnostic code to TestPing to help figure out why it fails on Jenkins.
Revert "Added some diagnostic code to TestPing to help figure out why it fails on Jenkins."

This reverts commit ed913d07b35f8b13dd90de6e8f3dca02186b130e.
Revert "Instrument TestPing failure."

This reverts commit 72c33701719dd357f185276f3bed6eaf96b08a9b.