code: public void removeRelationship(String baseTableName,
  			String relatedTableName, String relationAuthor, String relationName) {
  		removeRelationship(baseTableName, relatedTableName,
  				buildRelationName(relationAuthor, relationName));
  	}
docs: Remove a specific relationship from the GeoPackage
  
  @param baseTableName
  base table name
  @param relatedTableName
  related table name
  @param relationAuthor
  relation author
  @param relationName
  relation name