status.i4.v = acl_unregister_host_request_func()

	This routine removes a host request function for the Accelerator
	Command Language (ACL).  This function must have been registered
	by an earlier call to 'acl_register_host_request_func'.  This
	function is useful if a library routine wants to invoke an ACL
	script with its own host request function and then return control
	the main program when it's done.

	This function returns ACNET status values as follows:

	CLIB_OK			success
	CLIB_NO_SUCH		no function has been registered

	This function requires the following include files:

	acl_h, acnet_errors.h

	Related functions:

	intro_acl, acl_register_host_request_func, acl_execute_c,
	acl_file_execute_c, acl_file_read_c, acl_file_write_c, acl_compile_c,
	acl_free_c, acl_read_symbol_c, acl_read_symbol_info_c,
	acl_read_symbol_names, acl_delete_symbol, acl_info_c,
	acl_cancel_requests_c, acl_set_symbol_c, acl_default_data_source_c,
	acl_log_file_c, acl_default_script_path_c, acl_script_is_executing,
	acl_translate_command_string, acl_file_read_description_c,

	C/C++ usage:

	int	status;

	status = acl_unregister_host_request_func();