фраза в запросе бессмысленная и неграмотная
перевод - неправильный

Construction, need have done.
In modern English an average user of the language in fact lost the ability to understand the meaning disguised in the grammatical form of the phrase.

https://forum.wordreference.com/threads/need-have-done.2827840/

Though, the users of the official varieties of the language know it very well and use it often.It's noteworthy to say that the frequency of usage of the grammatical construction dramatically has fallen down since the beginning of the 70s last century.
The meaning of the construction is that
He need have done it.-
he did it , and it was necessary.
Examples:
1. The squier came farther into the dark with them than he need have done.
2. He sat closer to her than he need have done .
Examples from a British text published in the 60s last century. The fourth edition of it was published not so long ago.