'Remove permission-ViewMenu object to Role
:param role:
The role object
:param perm_view:
The PermissionViewMenu object'

def del_permission_role(self, role, perm_view):

    if (perm_view in role.permissions):
        try:
            role.permissions.remove(perm_view)
            self.get_session.merge(role)
            self.get_session.commit()
            log.info(c.LOGMSG_INF_SEC_DEL_PERMROLE.format(str(perm_view), role.name))
        except Exception as e:
            log.error(c.LOGMSG_ERR_SEC_DEL_PERMROLE.format(str(e)))
            self.get_session.rollback()
