Changes to Delete image manifest

added the non-success response with the status 503

removed the success response with the status 200

added the non-success response with the status 400

added the non-success response with the status 404

added the non-success response with the status 405

added the non-success response with the status 409

added the non-success response with the status 500

added the success response with the status 202

removed the success response with the status 202

removed the non-success response with the status 400

removed the non-success response with the status 404

removed the non-success response with the status 405

removed the non-success response with the status 409

removed the non-success response with the status 500

added the success response with the status 200