Now that he's gone, it is no longer necessary for her to keep his secret.

Sleep seemed like a thing of the past, something she used to do but was no longer necessary.

"And you think that the war is no longer necessary?"

"I found any number of things, but it would seem they are no longer necessary."

Men were no longer necessary in order to wage a war.

After what had happened she must have understood they were no longer necessary.

It was no longer necessary to think about the world.

Then, his services no longer necessary, he turned himself off.

Is this no longer necessary to use the operating system?

It was no longer necessary for either of them to act worried.