there was "#ifdef POSTGRE_TRACE", but it was nowhere to be seen
except in the following purged files.
Change-Id: Id77aef0869d112cb1a5282d8db79da4bc78a56e5
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/89378
Reviewed-by: Julien Nabet <serval2412@yahoo.fr>
Tested-by: Jenkins