remove comments for online validators

[rbavery]

Description

This removes comments so that the schema passes stricter jsonschema requirements that are common in online jsonschema validators. I think this is a non breaking change since it doesn't affect python validation. I would prefer to keep comments in but would rather be able to see errors neatly presented in online validators.

I did the quick thing in just removing all comments but probably some of these comments can be kept if they don't break jsonschema validation.

Related Issue

#37

Type of Change

• 📚 Examples, docs, tutorials or dependencies update;
• 🔧 Bug fix (non-breaking change which fixes an issue);
• 🥂 Improvement (non-breaking change which improves an existing feature);
• 🚀 New feature (non-breaking change which adds functionality);
• 💥 Breaking change (fix or feature that would cause existing functionality to change);
• 🔐 Security fix.

Checklist

• I've read the CONTRIBUTING.md guide;
• I've updated the code style using make check;

[fmigneault]

I insist on keeping the $comment entries that are permitted, as described in #37 (comment). Otherwise, the multi-level properties becomes extremely confusing. The "ok" locations could be reworded to include the "not ok" under it.

I had actually done so already some time ago, just completely forgot to integrate the PR:
main...crim-ca:mlm-extension:fix-comments

[rbavery]

Thanks for finding and reopening that, I'll close this in favor of #39