Update slot-machine.js

fix destroy causing error

Author: royanon

lib/slot-machine.js

@@ -392,7 +392,7 @@ class SlotMachine {
   destroy () {
     this._fakeFirstTile.remove();
     this._fakeLastTile.remove();
-    this.$tiles.unwrap();
+    // this.$tiles.unwrap();
 
     // Unwrap tiles
     this.tiles.forEach((tile) => {