code: public void removeExtension() {
  
  		try {
  			if (extensionsDao.isTableExists()) {
  				extensionsDao.deleteByExtension(EXTENSION_NAME);
  			}
  		} catch (SQLException e) {
  			throw new GeoPackageException(
  					"Failed to delete CRS WKT extension. GeoPackage: "
  							+ geoPackage.getName(), e);
  		}
  
  	}
docs: Remove the extension. Leaves the column and values.
  
  @since 3.2.0