In the Income section of your Federal return, choose Add/Edit/Update at the W-2 topic, depending on whether you're using TurboTax Online or Desktop versions.
On the next page (W-2 Summary), choose Edit (or the pencil icon) to open the W-2.
Then indicate that the W-2 belongs to your spouse, not you.
Or, you can just delete/re-enter the W-2 if you wish.