If I create a custom intent and then realize I don't need it for some reason, using the the trash can icon to the right of this intent, it's easy to get rid of it.
The same can not be said for built-in intents which I may have included. It seems that once I've added a built-in intent there is no way to get rid of it (there is no trash can or any other apparent method).
The particular problem came out of the AMAZON.NoIntent - which was not registering any of the expected utterances, nor any of the custom additions. To solve the problem, I ended up making a custom NoIntent, which now works perfectly. However, having a custom and a built-in intent with potentially overlapping utterance triggers makes me uneasy, and I would really rather just stick with one (whichever works).
Any advice on how to delete the built-in?