DELETE /callbacks/:id
curl https://reactor.adobe.io/callbacks/:id \
-H "Accept: application/vnd.api+json;revision=1" \
-H "Content-Type: application/vnd.api+json" \
-H "Authorization: Bearer [TOKEN]" \
-H "X-Api-Key: [KEY]" \
-H "X-Gw-Ims-Org-Id: [ORG_ID]" \
-X DELETE