How do I remove AMNEWEMOJI043 from my contacts?

I believe back before emojis were already on the iphones, you had to download an app and allow them. Ever since then, I've had a list of like 400 emoji names such as "AMNEWEMOJI043" in my contacts. Is there anyway to mass delete them? I do NOT need these and I'm just aggravated - I refuse to individually delete that many contacts LOL