Only set CURLOPT_POSTFIELDS options if post data is not empty for DELETE method #557
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Problem:
When sending a delete request to Apple News API, it always returns "invalid signature" error
It's because Apple check if CURLOPT_POSTFIELDS option exists, then they will detect that request as a POST, and validate a posting action instead of deleting action.
Solution:
Only set CURLOPT_POSTFIELDS options if post data is not empty for DELETE method