Revert readystate PR

[alexpetros]

Description

After discussion with @Telroshan, we're going to provide a new method that lets people initialize htmx at their own spot in the lifecycle if they load it in some nonstandard ways, rather than try to cover every possible gap in the loading cycle with closures. Discussion here: #2037 (comment)

Another PR for initialize to come.

Testing

Reverted to old tests.

Checklist

• I have read the contribution guidelines
• I have targeted this PR against the correct branch (master for website changes, dev for
  source changes)
• This is either a bugfix, a documentation update, or a new feature that has been explicitly
  approved via an issue
• I ran the test suite locally (npm run test) and verified that it succeeded

[xhaggi]

Somehow everything returns #1485 😆

[1cg]

@xhaggi are you on the discord? I'd like to get you involved over there if not,

[xhaggi]

@1cg yes, mention me and I'll jump in.