Remove TRACE_EVENT from EstimateBytesInPotentiallyAncientUndoDeltas
Remove TRACE_EVENT from EstimateBytesInPotentiallyAncientUndoDeltas

This function gets called many thousands of times per maintenance
scheduler op. When enabling tracing, it fills up most of the trace
buffer very quickly, but is rarely interesting.

Change-Id: I2cbbe827c33a4110a7167d4121408f191b89082a
Reviewed-on: http://gerrit.cloudera.org:8080/6415
Reviewed-by: Mike Percy <e07a1fd797b473a9c849e618aa2ce06d8055760b@apache.org>
Tested-by: Kudu Jenkins
Reviewed-by: David Ribeiro Alves <78b9f953b197533e9b51c860b080869056433b48@apache.org>

andrwng/kudu,InspurUSA/kudu,InspurUSA/kudu,andrwng/kudu,cloudera/kudu,helifu/kudu,EvilMcJerkface/kudu,andrwng/kudu,helifu/kudu,InspurUSA/kudu,helifu/kudu,cloudera/kudu,EvilMcJerkface/kudu,cloudera/kudu,helifu/kudu,InspurUSA/kudu,InspurUSA/kudu,InspurUSA/kudu,EvilMcJerkface/kudu,helifu/kudu,cloudera/kudu,EvilMcJerkface/kudu,andrwng/kudu,helifu/kudu,EvilMcJerkface/kudu,InspurUSA/kudu,EvilMcJerkface/kudu,EvilMcJerkface/kudu,EvilMcJerkface/kudu,InspurUSA/kudu,andrwng/kudu,EvilMcJerkface/kudu,InspurUSA/kudu,andrwng/kudu,cloudera/kudu,helifu/kudu,cloudera/kudu,cloudera/kudu,helifu/kudu,andrwng/kudu,helifu/kudu,cloudera/kudu,andrwng/kudu,andrwng/kudu,cloudera/kudu