(GitHub Action) Obsolete more built-in aliases. (#207)

This commit was copied from the master branch.

Commit: 264a382
Author: okamsn <[email protected]>
Date: 2024-09-06 02:24:19 +0000

Obsolete more built-in aliases. (#207)

- Make `command-do` the default name and `group` the obsolete alias.
  - Rename `loopy--parse-group-command` to `loopy--parse-command-do-command`.

- Obsolete `expr` and `exprs` for `set`.

- Obsolete `prev-expr` for `set-prev`.  Remove mention of the alias
  `prev` from the Org documentation, which should have been done in the
  previous round of obsoletions.

- Update Texinfo file.

See this PR #207 and issue #168, as well as previous obsoletions in
PR #206 and issue #126.