* mi/mi-cmds.h (mi_cmd_args_ftype): Remove.

	* mi/mi-cmds.h (mi_cmd_args_ftype): Remove.
	Adjust all prototypes using mi_cmd_args_ftype to use
	mi_cmd_argv_ftype.
	(struct mi_cmd): Remove the args_func field.
	* mi/mi-cmds.c: Don't provide value for the args_func field.
	* mi/mi-main.c (mi_execute_async_cli_command)
	(mi_cmd_exec_run, mi_cmd_exec_next, mi_cmd_exec_next_instruction)
	(mi_cmd_exec_step, mi_cmd_exec_step_instruction)
	(mi_cmd_exec_finish, mi_cmd_exec_until, mi_cmd_exec_return)
	(mi_cmd_exec_continue, mi_cmd_exec_interrupt)
	(mi_cmd_target_download): Adjust.
	(mi_cmd_target_select): Adjust. Pass 0 for from_tty parameter.
	(mi_cmd_execute): Do not check for args_func.
	(mi_execute_async_cli_command): Adjust.
	* mi/mi-parse.c: Don't check for args_func.