how can i cancel my B1 application after this one was approuved ?

[Guillaume Pichaud]

Hello, I made a B1 application in february, but since this time, I lost my passeport, so I made a knew one. And I am not working for the same compagny anymore, but I will have to go in USA with my knew job and I wanna be sure that I will have no trouble to cross the border (I'm a truck driver). How can I delete this B1 application ?
I never scedule an appointment at US ambassady, to pay the fee.
Thank you so much, if you can help me.