I checked the history and found out that this has been removed under this iss...

I checked the history and found out that this has been removed under this issue : https://www.drupal.org/project/drupal/issues/2493911

Drupal\Core\Http\Client service has been removed. The recommended approach for handling HTTP requests now is to use GuzzleHttp\Client
This change facilitates easier updates and better security management by relying directly on Guzzle.
I have placed the MR to update the @see annotation to point to the new recommended approach. Please review.

Thank You !!