code: public static void unregisterDaos(ConnectionSource connectionSource) {
  		// TODO when ormlite-core version > 5.1 is released, replace with:
  		// "DaoManager.unregisterDaos(connectionSource);"
  		// See https://github.com/j256/ormlite-core/pull/149
  		unregisterDao(connectionSource, Contents.class,
  				SpatialReferenceSystem.class,
  				SpatialReferenceSystemSfSql.class,
  				SpatialReferenceSystemSqlMm.class, Extensions.class,
  				GriddedCoverage.class, GriddedTile.class, GeometryIndex.class,
  				TableIndex.class, FeatureTileLink.class,
  				ExtendedRelation.class, TileScaling.class,
  				GeometryColumns.class, GeometryColumnsSfSql.class,
  				GeometryColumnsSqlMm.class, Metadata.class,
  				MetadataReference.class, DataColumns.class,
  				DataColumnConstraints.class, TileMatrix.class,
  				TileMatrixSet.class, ContentsId.class);
  	}
docs: Unregister all GeoPackage DAO with the connection source
  
  @param connectionSource
  connection source