They require you to send your entire test history, but would they know if you leave off a test or two?
Honestly, trying to hide a test is most likely not worth it. I’m not sure if they can tell, but it is dishonest and if found out, it could easily lead to automatic rejection or rescission (if you were to be accepted). If you are a stong applicant, then you will be considered and shouldn’t be dishonest with your scores.