DEVDOCS-6574 - Remove blank description causing duplicate body (#1125)

<!-- Ticket number or summary of work -->
# [DEVDOCS-6574]


## What changed?
<!-- Provide a bulleted list in the present tense -->
* Feedback was provided that there was a duplicate body description body
in the Create Refund Quote endpoint

## Release notes draft
No notable release notes.  Just fixed an error.

ping @bigcommerce/dev-docs @bc-terra 


[DEVDOCS-6574]:
https://bigcommercecloud.atlassian.net/browse/DEVDOCS-6574?atlOrigin=eyJpIjoiNWRkNTljNzYxNjVmNDY3MDlhMDU5Y2ZhYzA5YTRkZjUiLCJwIjoiZ2l0aHViLWNvbS1KU1cifQ

Author: chris-nowicki

reference/orders.v3.yml

@@ -225,7 +225,6 @@ paths:
               - item_id: 79
                 item_type: SHIPPING
                 amount: 10
-        description: ''
       responses:
         '201':
           $ref: '#/components/responses/RefundQuote_Resp'