不要

不要

Unnecessary; not needed.

In this sentence, '不要' means 'not necessary' or 'unneeded', indicating that the document is no longer required.

この書類はもう不要です。

This document is no longer necessary.

Here, '不要な' describes items that are not needed or lacking utility, suggesting action to declutter.

不要な物は捨てましょう。

Let's dispose of unnecessary items.

In this context, '不要' is used to express that something, in this case the explanation, was not required or superfluous.

彼の説明は不要だったと思います。

I think his explanation was unnecessary.