Request for Japanese translation for 994

[david-a-wheeler]

PR 994 #994 added two hints.

It'd be great if there were Japanese translations! Could our long-suffering translators add those?

[06kellyjac]

I hope our lovely Japanese translators don't mind being CC-ed for awareness: @shimos @Muuhh-CTJ @ninan27

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Original (shared for both hints):

Parentheses are not necessary or clarifying in this regex. Prefer simpler regex expressions.

My pretty amateur attempt(s) trying to reuse relevant words/phrases already used in translations:

カッコはこの正規表現において必要でも明確にするためでもありません。より単純な正規表現が望ましいです。

カッコは必要でも明確でもない。より単純な正規表現が望ましいです。