How to remove apps/forms from Facebook page

I would like to take the current form off my fb page and put the new one which is called a clone..

can you give me step by step how to do this

For you to be able to remove the current apps/forms on your Facebook page, here's what you're going to do:

First, 

Then, 

And finally, 

I hope this helps. Let us know if you need any further assistance. Thank you.