audit_delete_rule_data (3) - Linux Man Pages
audit_delete_rule_data: Delete audit rule
NAMEaudit_delete_rule_data - Delete audit rule
int audit_delete_rule_data (int fd, struct audit_rule_data *rule, int flags, int action);
audit_delete_rule_data is used to delete rules that are currently loaded in the kernel. To delete a rule, you must set up the rules identical to the one being deleted. See audit_add_rule_data for flag and action definitions.
The return value is <= 0 on error, otherwise it is the netlink sequence id number. This function can have any error that sendto would encounter.