Hide navigation bar in storyboard

Click on the controller that has the top bar navigate to the properties bar on the right hand side of Xcode. There is a drop down labeled Top Bar (as shown above) change this drop down to none.

You have to click the actual navigation controller, not the view controller. On the view controller the navigation drop down doesn't show up, but you can still achieve this by selecting Top Bar: none in Simulated Metrics.

Solution for the same using Swift 3:

Step 1. Using attribute inspector hide Navigation Bar from Storyboard:

Step 2. Add the following code to your ViewController:

override func viewWillAppear(_ animated: Bool) {
    super.viewWillAppear(animated)

    // Hide the navigation bar on the this view controller
    self.navigationController?.setNavigationBarHidden(true, animated: animated)
}

override func viewWillDisappear(_ animated: Bool) {
    super.viewWillDisappear(animated)

    // Show the navigation bar on other view controllers
    self.navigationController?.setNavigationBarHidden(false, animated: animated)
}

In the Storyboard view, just select the NavigationController scene and UNCHECK Shows Navigation Bar (Attributes Inspector)