Remove Dockerfiles that are no longer used

[Devansh-567]

Both tools/Dockerfile.asciidoc_v1 and tools/Dockerfile.asciidoc_v2
had broken RUN command chaining in the gem install and rouge build
steps.

Issues fixed:

• gem install commands used \ (line continuation) instead of &&\,
  meaning failures would be silently ignored and subsequent installs
  would still run
• cd rouge \ did not persist to the next line, so gem build and
  gem install were running in the wrong directory
• Replaced hardcoded rouge-4.4.0.gem with rouge-*.gem wildcard
  to match whatever version was built from source

These bugs would cause the Docker image to silently produce an
incorrect build environment.

[jafingerhut]

Since you recently made changes so that the Docker images are not used to run asciidoctor, I guess the bigger question is whether there is any reason to keep these files around any longer, or should they just be removed?

[Devansh-567]

Since you recently made changes so that the Docker images are not used to run asciidoctor, I guess the bigger question is whether there is any reason to keep these files around any longer, or should they just be removed?

That's a fair point. Since the any-branch-uploads.yml workflow no longer uses the Docker image, these Dockerfiles appear to have no remaining users in the repository. I am happy to replace this PR with one that removes both files entirely if that is preferred. Just let me know and I will update the branch

[jafingerhut]

Since you recently made changes so that the Docker images are not used to run asciidoctor, I guess the bigger question is whether there is any reason to keep these files around any longer, or should they just be removed?

That's a fair point. Since the any-branch-uploads.yml workflow no longer uses the Docker image, these Dockerfiles appear to have no remaining users in the repository. I am happy to replace this PR with one that removes both files entirely if that is preferred. Just let me know and I will update the branch

Please do, and thanks. I'd rather not maintain scripts that likely no one is using now, nor likely to use in the future.

[Devansh-567]

This is ready to merge whenever you have a chance. Thanks for the review!

[jafingerhut]

This is ready to merge whenever you have a chance. Thanks for the review!

It seems best to wait to merge this until after #1410 is approved and merged.