Remove log messages that were used ot diagnose a warmup issue

These messages were added temporarily and are no longer neccessary
to keep in the code base.

Change-Id: I63ea88e3755ce2e63c35e629ccad1eff096cbe53
Reviewed-on: http://review.couchbase.org/39643
Reviewed-by: Sriram Ganesan <sriram@couchbase.com>
Tested-by: Michael Wiederhold <mike@couchbase.com>