     var annotationTitle = String()
     var annotationSubtitle = String()
     
-    // MARK: Outlets.
-    @IBOutlet weak var mapView: MKMapView!
-    @IBOutlet weak var addDealButton: UIButton!
-    @IBOutlet weak var myDealsButton: UIButton!
-    
-    // MARK: Actions.
+    // MARK: Action.
     @IBAction func signOutDidTouch(_ sender: Any) {
         let firebaseAuth = FIRAuth.auth()
         do {

            for item in snapshot.children {
                let userData = User(snapshot: item as! FIRDataSnapshot)
                if userData.uid == (FIRAuth.auth()?.currentUser?.uid)! {
                    if userData.type! == 1 {
                        self.addDealButton.isHidden = false
                        self.myDealsButton.isHidden = false

        })
    }
    
    private func addAllAnnotations() {
        for deal in displayedDeals {
            addAnnotation(deal: deal)
