no, but get it done now , the longer you leave it more of a bigger op for the dog, and the more vet will charge you .
At 9 months you may as well leave them and see if they give any bother first....sometimes they do......some times they don't. I have had dogs with and without. At 9 months I would wait and see. To have them removed at that age would be 'an operation', not just like 'nipping them off' when a wee pup.