What is the best way to clear old events?

Question

JavaScript

I had a problem, in my context menu (right-clicking in a square block), when I click on delete, a tag is displayed in the console. Each time you press RMB, the event is remembered and many results are printed to the console, and with each subsequent press, more and more tags will be displayed. Tell me where and which handler to remove, or to take it out of the function so that only the current tag is displayed, without the previous ones? Thanks in advance!