revert adding Endpoint.state.enabled_features

[ferullo]

Change Summary

This reverts most of #399

• Endpoint.state.enabled_features is removed
• The custom_documentation/ removal in the original PR is left removed since the data is still now going to a .logs index.

Sample values

See PR

Release Target

8.10

Q/A

• I ran make after making the schema changes, and committed all changes

[elasticmachine]

💚 Build Succeeded

the below badges are clickable and redirect to their specific view in the CI or DOCS

Expand to view the summary

Build stats

• Start Time: 2023-08-07T20:58:27.781+0000

• Duration: 8 min 31 sec

🤖 GitHub comments

Expand to view the GitHub comments

To re-run your PR in the CI, just comment with:

• /test : Re-trigger the build.