[PostGIS] #5611: Remove the workaround for pgaudit being too verbose.

[PostGIS]

#5611: Remove the workaround for pgaudit being too verbose.
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  Reporter:  mnencia      |      Owner:  pramsey
      Type:  enhancement  |     Status:  new
  Priority:  medium       |  Milestone:  PostGIS 3.5.0
 Component:  postgis      |    Version:  3.4.x
Resolution:               |   Keywords:
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Comment (by pramsey):

 So, having a gander at this, we could probably wrap the test in a check
 for the pgaudit version, since it's there in pg_extension.extversion. The
 code also says the problem is specific to PgSQL <=14, which I don't really
 recall.

 I am going to remove the check entirely from trunk. How do we feel about a
 version checking port for stable releases?
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Ticket URL: <https://trac.osgeo.org/postgis/ticket/5611#comment:6>
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