(there's) no need (to)
One is not or is no longer obliged or required (to do something). A: "I still have to write a card for her birthday!" B: "No need to—I already wrote one this morning." There's no need to drive me all the way to the airport, you know. I'm perfectly fine getting a bus. A: "I'll walk you to your door." B: "Thank you, but there's really no need. I can manage just fine on my own.
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.
(There is) no need (to).
You do not have to.; It is not necessary. Mary: Shall I try to save all this wrapping paper? Sue: No need. It's all torn. Bob: Would you like me to have it repaired? I'm so sorry I broke it. Bill: There is no need to. I can just glue it, thanks.
McGraw-Hill Dictionary of American Idioms and Phrasal Verbs. © 2002 by The McGraw-Hill Companies, Inc.