Fix unreachable patterns

examples/fullscreen.rs

@@ -41,7 +41,6 @@ fn main() {
                     _ => ()
                 }
             },
-            _ => ()
         }
     });
 }

examples/grabbing.rs

@@ -37,7 +37,6 @@ fn main() {
                     _ => (),
                 }
             },
-            _ => ()
         }
     });
 }