Remove Secure Score Changes from AAD

[ssatyapal123]

🐛 Summary

The Secure Score Graph cmdlet Get-MgSecuritySecureScore was implemented for MS.AAD.7.2v1 but needs to be removed because of implementation problems. It may be investigated further in Flipper. See #548 for more details.

Steps to Remove Secure Score from MS.AAD.7.2v1

1. Remove Get-MgSecurityScore call in the AAD provider and its key in the resulting JSON
2. Remove Microsoft.Graph.Security in the RequiredVersions.ps1 and utils\UninstallModules.ps1 files
3. Remove Some of the updates to the MS.AAD.7.2v1 test (those integrating secure score, but leave the PolicyID update)
4. Remove all of the unit test updates

Acceptance Criteria

• Run the tool against AAD and ensure MS.AAD.7.2v1 shows as Not Implemented (i.e., manual check required)

[ssatyapal123]

Close issue as PR was merged into emerald.