code: public static void deleteFeatureTileLinkExtension(GeoPackageCore geoPackage) {
  
  		FeatureTileLinkDao featureTileLinkDao = geoPackage
  				.getFeatureTileLinkDao();
  		ExtensionsDao extensionsDao = geoPackage.getExtensionsDao();
  		try {
  			if (featureTileLinkDao.isTableExists()) {
  				geoPackage.dropTable(featureTileLinkDao.getTableName());
  			}
  			if (extensionsDao.isTableExists()) {
  				extensionsDao
  						.deleteByExtension(FeatureTileTableCoreLinker.EXTENSION_NAME);
  			}
  		} catch (SQLException e) {
  			throw new GeoPackageException(
  					"Failed to delete Feature Tile Link extension and table. GeoPackage: "
  							+ geoPackage.getName(), e);
  		}
  
  	}
docs: Delete the Feature Tile Link extension including the extension entries
  and custom tables
  
  @param geoPackage
  GeoPackage
  @since 3.2.0