I can't find the bin!
I'm assuming you are talking about the Publish Online Dashboard. On the far right, click the ...(ellipses) menu and you'll see the Delete option.
Just select Delete from the menu, and you'll be prompted whether you want to permanently the delete the item.
As I showed in the first illustration, there's a ...[ellipsis] at the far right of the line. When you click on it, that menu shows the word Delete. Click on Delete and it confirms the deletion.
The ... indicates there's a menu there.