This had been added in Gold R3 because express checkout wasn't working in sandbox mode. It is handled by an external file (App_Data/paypal.config) that contains endpoints for the API. You can see the following line just below the </configSections>
Code: Select all
<paypal configSource="App_Data\paypal.config"/>
It seems that all this is no longer required since we have updated PayPal integration to use latest SDK in Gold R9. I am going to open a bug report for testing and to make sure everything is working as expected without these endpoints in place.
Thanks for pointing this out.