Removing profane customer chats from the queue

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Does anyone know how to suppress/remove the Request Email Response button from the screen that pops when removing a customer from the queue using rules?

I've figured out a way to flag profane/abusive customers and kick them out of the queue, but the window that pops up contains a button, labeled "Request Email Response", that I'd like to remove. And I can't find anything that works to suppress the button.

My suspicions is that I have to modify a widget to do this.

Any ideas appreciated.