Revert "Merge branch '536713-gerardo-navarro-package-registry-pass-warning-error-message-to-nuget-client' into 'master'"

What does this MR do and why?

Ensure nuget client receives error message (!189196 - merged) added the X-NuGet-Warning header with the error message to improve the UX for NuGet clients. However, it turned out that some clients might be configured in a way, when warning is treated as an error. In such case, when using multiple sources to fetch packages, the client will stop the execution at the point it encountered the error link.

We need to perform an investigation before adding the X-NuGet-Warning header.

This MR reverts merge request !189196 (merged)

References

• Pass Nuget warning/error messages to the client (#536713)
• Ensure nuget client receives error message (!189196 - merged)

Screenshots or screen recordings

Before	After

How to set up and validate locally

MR acceptance checklist

Evaluate this MR against the MR acceptance checklist. It helps you analyze changes to reduce risks in quality, performance, reliability, security, and maintainability.