Delete a specific Variable
A key and value pair that is specific to an Environment.
Delete a specific Variable.
DELETE
/v1/Services/{ServiceSid}/Environments/{EnvironmentSid}/Variables/{Sid}
curl \
-X DELETE https://serverless.twilio.com/v1/Services/{ServiceSid}/Environments/{EnvironmentSid}/Variables/{Sid} \
--user "username:password"