License Compliance - Remove legacy "License Management" area from Settings -> CI/CD

Now that we have the License Compliance page with the "Policy" tab, we had talked about removing the legacy "License Management" (now called License Compliance) that exists under "Settings -> CI/CD -> License Compliance"

Current Screenshot of Settings -> CI/CD:

Development Notes:

Just remove the code relevant to rendering the dropdown. Should be a quick win.

Tasks (Caution)

• We need to first do #212474 (closed). We need to make sure we don't link to this old area anymore.

• Need to update docs and screenshots to reflect the removal of this area in favor of the "Policy" tab in License complliance.

Preferred Usage

Availability and Testing

Set is to fix/rewrite the licence compliance feature end-to-end test as per #219461 (closed)

This test won't test Settings - CI/CD - License Management as it is to be removed.