Endure: don't spit out each timeout schedule

This creates a LOT of logging noise

Change-Id: I0ef5925875118ff4567a1fd04d3c811f0c97e9c9
Reviewed-on: http://review.couchbase.org/43629
Tested-by: Mark Nunberg <mnunberg@haskalah.org>
Reviewed-by: Sergey Avseyev <sergey.avseyev@gmail.com>