Changes to Remove line once (for next order)

removed the request body

for the path request parameter lineId, the type changed from string to integer, and format from no format to int64

for the path request parameter subscriptionId, the type changed from string to integer, and format from no format to int64

api operation id delete_2023-10-subscription-subscriptionid-line-lineid-once removed and replaced with remove-line-once-for-next-order

added the media type application/json for the response with the status 200

added the non-success response with the status 400