That is not a remake. Using a film as inspiration is how many films get started, but no one has remade “Seven Samurai”.
It’s a remake. Even if you throw out the ones you’re wrongly insisting aren’t remakes there’s also the anime TV show Samurai 7. No matter how you slice it, Seven Samurai HAS been remade. You can argue how many, but you CANNOT argue it hasn’t happened.