Remove `--private` and `--public` args from `publish`

[keeramis]

Description

Particle publishes are now default to private events. This update removes --private and --public args.

How to Test

Related Issues / Discussions

Completeness

• [x] User is totes amazing for contributing!
• [ ] Contributor has signed CLA
• [ ] Problem and solution clearly stated
• [ ] Tests have been provided
• [ ] Docs have been updated
• [ ] CI is passing

[keeramis]

@monkbroc Could this improvement potentially break user's scripts on their local machines? cc: @hugomontero