Revert "ci: add `check-spelling` GitHub Action"

This reverts commit aef393bdce523ed5e5754721965fab2da8080119.

.github/actions/spelling/README.md

@@ -1,15 +0,0 @@
-# check-spelling/check-spelling configuration
-
-| File                             | Purpose                                                                          | Format                                                    | Info                                                                                                 |
-| -------------------------------- | -------------------------------------------------------------------------------- | --------------------------------------------------------- | ---------------------------------------------------------------------------------------------------- |
-| [dictionary.txt](dictionary.txt) | Replacement dictionary (creating this file will override the default dictionary) | one word per line                                         | [dictionary](https://github.com/check-spelling/check-spelling/wiki/Configuration#dictionary)         |
-| [allow.txt](allow.txt)           | Add words to the dictionary                                                      | one word per line (only letters and `'`s allowed)         | [allow](https://github.com/check-spelling/check-spelling/wiki/Configuration#allow)                   |
-| [reject.txt](reject.txt)         | Remove words from the dictionary (after allow)                                   | grep pattern matching whole dictionary words              | [reject](https://github.com/check-spelling/check-spelling/wiki/Configuration-Examples%3A-reject)     |
-| [excludes.txt](excludes.txt)     | Files to ignore entirely                                                         | perl regular expression                                   | [excludes](https://github.com/check-spelling/check-spelling/wiki/Configuration-Examples%3A-excludes) |
-| [only.txt](only.txt)             | Only check matching files (applied after excludes)                               | perl regular expression                                   | [only](https://github.com/check-spelling/check-spelling/wiki/Configuration-Examples%3A-only)         |
-| [patterns.txt](patterns.txt)     | Patterns to ignore from checked lines                                            | perl regular expression (order matters, first match wins) | [patterns](https://github.com/check-spelling/check-spelling/wiki/Configuration-Examples%3A-patterns) |
-| [expect.txt](expect.txt)         | Expected words that aren't in the dictionary                                     | one word per line (sorted, alphabetically)                | [expect](https://github.com/check-spelling/check-spelling/wiki/Configuration#expect)                 |
-| [advice.md](advice.md)           | Supplement for GitHub comment when unrecognized words are found                  | GitHub Markdown                                           | [advice](https://github.com/check-spelling/check-spelling/wiki/Configuration-Examples%3A-advice)     |
-
-Note: you can replace any of these files with a directory by the same name (minus the suffix)
-and then include multiple files inside that directory (with that suffix) to merge multiple files together.

.github/actions/spelling/advice.md

@@ -1,27 +0,0 @@
-<!-- See https://github.com/check-spelling/check-spelling/wiki/Configuration-Examples%3A-advice --> <!-- markdownlint-disable MD033 MD041 -->
-<details><summary>If you see a bunch of garbage</summary>
-
-If it relates to a ...
-<details><summary>well-formed pattern</summary>
-
-See if there's a [pattern](https://github.com/check-spelling/check-spelling/wiki/Configuration-Examples:-patterns) that would match it.
-
-If not, try writing one and adding it to the `patterns.txt` file.
-
-Patterns are Perl 5 Regular Expressions - you can [test](
-https://www.regexplanet.com/advanced/perl/) yours before committing to verify it will match your lines.
-
-Note that patterns can't match multiline strings.
-</details>
-<details><summary>binary-ish string</summary>
-
-Please add a file path to the `excludes.txt` file instead of just accepting the garbage.
-
-File paths are Perl 5 Regular Expressions - you can [test](
-https://www.regexplanet.com/advanced/perl/) yours before committing to verify it will match your files.
-
-`^` refers to the file's path from the root of the repository, so `^README\.md$` would exclude [README.md](
-../tree/HEAD/README.md) (on whichever branch you're using).
-</details>
-
-</details>

.github/actions/spelling/excludes.txt

@@ -1,17 +0,0 @@
-# See https://github.com/check-spelling/check-spelling/wiki/Configuration-Examples:-excludes
-(?:^|/)(?i)COPYRIGHT
-(?:^|/)(?i)LICEN[CS]E
-(?:^|/)package(?:-lock|)\.json$
-(?:^|/)vendor/
-ignore$
-\.avi$
-\.ico$
-\.jpe?g$
-\.lock$
-\.map$
-\.min\.
-\.mod$
-\.mp[34]$
-\.png$
-\.wav$
-^\.github/

.github/actions/spelling/expect.txt

@@ -1,2 +0,0 @@
-ohmyzsh
-oh-my-zsh

.github/actions/spelling/patterns.txt

@@ -1,4 +0,0 @@
-# See https://github.com/check-spelling/check-spelling/wiki/Configuration-Examples:-patterns
-
-# ignore long runs of a single character:
-\b([A-Za-z])\g{-1}{3,}\b

.github/actions/spelling/reject.txt

@@ -1,6 +0,0 @@
-^attache$
-occurence
-Sorce
-^[Ss]pae
-^untill
-^wether

.github/workflows/spelling.yml

@@ -1,31 +0,0 @@
-name: Spell checking
-on:
-  pull_request_target:
-  push:
-  issue_comment:
-    types: [created]
-
-jobs:
-  spelling:
-    name: Spell checking
-    runs-on: ubuntu-latest
-    steps:
-    - name: checkout-merge
-      if: "contains(github.event_name, 'pull_request')"
-      uses: actions/checkout@v2
-      with:
-        ref: refs/pull/${{github.event.pull_request.number}}/merge
-    - name: checkout
-      if: ${{ github.event_name == 'push' ||
-        (
-          contains(github.event.comment.body, '@check-spelling-bot apply')
-        ) }}
-      uses: actions/checkout@v2
-    - uses: check-spelling/check-spelling@main
-      id: spelling
-      if: ${{ github.event_name != 'issue_comment' ||
-        (
-          contains(github.event.comment.body, '@check-spelling-bot apply')
-        ) }}
-      with:
-        experimental_apply_changes_via_bot: 1