GitLab

(Vprefix_arg): Deleted; not part of struct kboard again.
(Funiversal_argument, Fnegative_argument, Fdigit_argument)
(clear_prefix_arg, finalize_prefix_arg, describe_prefix_arg): Deleted.
(syms_of_callint): Use DEFVAR_KBOARD for Vprefix_arg.
Remove defsubrs for deleted functions.