You should have done a background check before submitting your essay to the journal. I don't think the journal will agree to pull down your paper. However, you can give it a shot since you would not want to be associated with a predatory journal. Write to the journal saying that you will not pay anything and you want your essay unpublished. Since you had already made it clear at the beginning that you will not make any payment, they cannot coerce into paying.
If the journal does not pull down your essay, there's not much you can do about it. You should then just ignore the emails asking for payment and stop communicating with the journal altogether.
However, do not, under any circumstance, include this editorial as a publication in your CV or researcher profile as any kind of association with a predatory publisher can affect your credibility and reputation as a researcher.