GitLab

* lisp/gnus/nnmail.el (nnmail-group-names-not-encoded-p): Use
  make-obsolete-variable.
  (nnmail-split-incoming): Do not bind.
* lisp/gnus/nnml.el (nnml-save-mail, nnml-active-number): Remove
  check.
  (nnml-request-group, nnml-request-expire-articles): Group name is
  already decoded, don't decode again.