Fix issue twilio#59.

ComradeDOS · ComradeDOS · commit 9759a0417dd9 · 2012-09-04T01:42:59.000+07:00
diff --git a/twilio/rest/resources.py b/twilio/rest/resources.py
@@ -1102,7 +1102,7 @@ def delete(self, call_sid):
         """
         Remove the participant from the given conference
         """
-        return self._delete(call_sid)
+        return self.delete_instance(call_sid)
 
     def update(self, sid, **kwargs):
         """
