Remove OBE Rego Code

[adhilto]

💡 Summary

Remove the Rego logic for determining the state via log events for all settings that can be determined via the policy API.

Motivation and context

#499 adds policy API support but maintains the old log event-based code. Removing that code will greatly simplify the Rego code, making it easier to maintain and test.

Implementation notes

• Remove OBE Rego code for Sites #503
• Remove OBE Rego code for Chat #504
• Remove OBE Rego code for Drive #505
• Remove OBE Rego code for Common Controls #506
• Remove OBE Rego code for Gmail #507
• Remove OBE Rego code for Classroom #508
• Remove OBE Rego code for Groups #509
• Remove OBE Rego code for Meet #510
• Remove OBE Rego code for Calendar #511

Acceptance criteria

The Rego code for all baselines has been updated.