Delete recording transcription
References to text transcriptions of call recordings
DELETE /2010-04-01/Accounts/{AccountSid}/Recordings/{RecordingSid}/Transcriptions/{Sid}.json
curl \
-X DELETE https://api.twilio.com/2010-04-01/Accounts/{AccountSid}/Recordings/{RecordingSid}/Transcriptions/{Sid}.json \
--user "username:password"