remove LanguageAnalyzer

[fbaligand]

The "language" analyzer does not exist at least since Elasticsearch 8.

If I try to create this index:

PUT my_index
{
  "settings": {
    "analysis": {
      "analyzer": {
        "default": {
          "type": "language",
          "language": "french",
          "stem_exclusion": ["some_token"]
        }
      }
    }
  }
}

I got this error:

{
  "error": {
    "root_cause": [
      {
        "type": "illegal_argument_exception",
        "reason": "Unknown analyzer type [language] for [default]"
      }
    ],
    "type": "illegal_argument_exception",
    "reason": "Unknown analyzer type [language] for [default]"
  },
  "status": 400
}

That's why this PR aims to remove LanguageAnalyzer class in elasticsearch-specification.

[l-trotta]

@fbaligand thank you for the contribution! could you also remove the Language enum since it's not used anywhere else? then I'll run validation in another branch before merging.

[fbaligand]

Hi @l-trotta

Thanks for your review!
Indeed, so I just removed "Language" enum and pushed it as a new commit.

[l-trotta]

LGTM, thanks!

[github-actions]

The backport to 8.x failed:

The process '/usr/bin/git' failed with exit code 1

To backport manually, run these commands in your terminal:

# Fetch latest updates from GitHub
git fetch
# Create a new working tree
git worktree add .worktrees/backport-8.x 8.x
# Navigate to the new working tree
cd .worktrees/backport-8.x
# Create a new branch
git switch --create backport-3859-to-8.x
# Cherry-pick the merged commit of this pull request and resolve the conflicts
git cherry-pick -x --mainline 1 d190348790683844d972d2a3d239cdb316084f3a
# Push it to GitHub
git push --set-upstream origin backport-3859-to-8.x
# Go back to the original working tree
cd ../..
# Delete the working tree
git worktree remove .worktrees/backport-8.x

Then, create a pull request where the base branch is 8.x and the compare/head branch is backport-3859-to-8.x.

[github-actions]

The backport to 8.18 failed:

The process '/usr/bin/git' failed with exit code 1

To backport manually, run these commands in your terminal:

# Fetch latest updates from GitHub
git fetch
# Create a new working tree
git worktree add .worktrees/backport-8.18 8.18
# Navigate to the new working tree
cd .worktrees/backport-8.18
# Create a new branch
git switch --create backport-3859-to-8.18
# Cherry-pick the merged commit of this pull request and resolve the conflicts
git cherry-pick -x --mainline 1 d190348790683844d972d2a3d239cdb316084f3a
# Push it to GitHub
git push --set-upstream origin backport-3859-to-8.18
# Go back to the original working tree
cd ../..
# Delete the working tree
git worktree remove .worktrees/backport-8.18

Then, create a pull request where the base branch is 8.18 and the compare/head branch is backport-3859-to-8.18.

[fbaligand]

Thanks for the merge @l-trotta !