Remove byebug

[andyw8]

Motivation

Prefer to use the official Ruby debug gem (already present). The last release of byebug was over 3 years ago.

[st0012]

If anyone hasn't migrated to debug yet, I hope this guide would help (if not, please let me know).

[paracycle]

Honestly I was still using pry-byebug and am sad to see it removed. Why can't we have both debug and byebug installed in dev mode?

[st0012]

We are accelerating byebug's deprecation (hence pry-byebug too) because we found that having byebug loaded actually breaks debug in some cases (issue).

And this could also happen when debugging Tapioca tests because byebug is required in spec_helper. I know we can avoid this by simply not requiring byebug there. But to align with the deprecation effort, it'd be great if our projects can lead the migration first. That's why we're both 1) removing byebug and 2) setup debug integration with our projects (e.g. #1399).

So I hope we can give debug a try for a week or two. And if the inconvenience still out weights the extra features it provides, we can collect the feedback and then add pry-byebug back. WDYT?