remove a function?

how do I remove this function?!?!?!?! holy fk how is it done?

never mind I found out the answer like 1 minute after I posted this.

I removed the event listeners for the backgrounds and grounds in my on collision event FIXING THE ATTEMPT TO NIL NUMBER yo!

never mind I found out the answer like 1 minute after I posted this.

I removed the event listeners for the backgrounds and grounds in my on collision event FIXING THE ATTEMPT TO NIL NUMBER yo!