Deletes registration object from database

            :param register_user: RegisterUser object to delete

def del_register_user(self, register_user):
        """
            Deletes registration object from database

            :param register_user: RegisterUser object to delete
        """
        try:
            self.get_session.delete(register_user)
            self.get_session.commit()
            return True
        except Exception as e:
            log.error(c.LOGMSG_ERR_SEC_DEL_REGISTER_USER.format(str(e)))
            self.get_session.rollback()
            return False