Drop all gauged tables

def drop_schema(self):
        """Drop all gauged tables"""
        execute = self.cursor.execute
        execute('DROP TABLE IF EXISTS gauged_data')
        execute('DROP TABLE IF EXISTS gauged_keys')
        execute('DROP TABLE IF EXISTS gauged_writer_history')
        execute('DROP TABLE IF EXISTS gauged_cache')
        execute('DROP TABLE IF EXISTS gauged_statistics')
        execute('DROP TABLE IF EXISTS gauged_metadata')
        self.db.commit()