Chat window: Shortcut to remove context

Is there any shortcut to remove all context (file-pills) from my current chat window?
When I open a new chat windows (ctrl + L) while having a file open it always adds that file to the context of my newly opened chat window. I would like to quickly remove all context so I can chat with my currently selected model in an unbiased way?

Hey, for me, it works with the Backspace key. If there are multiple files, pressing this key in sequence deletes them one by one.