clean code

enzevalos_iphone/IntroTableView.swift

@@ -17,7 +17,7 @@ class IntroTableView: UITableView {
         for touch in touches {
             if touch.tapCount == 2 || touch.force > 1.0 {
                 let point = touch.location(in: self)
-                let index = indexPathForRow(at: point)
+                _ = indexPathForRow(at: point)
             }
         }
     }