[3D car coin hunt] Remove a coin added by mistake (#792)

- Don't show in changelog

Author: D8H

examples/3d-car-coin-hunt/3d-car-coin-hunt.json

@@ -1,7 +1,7 @@
 {
   "firstLayout": "Menu",
   "gdVersion": {
-    "build": 236,
+    "build": 235,
     "major": 5,
     "minor": 5,
     "revision": 0
@@ -87,6 +87,7 @@
     "playableDevices": [
       "keyboard",
       "gamepad",
+      "mobile",
       "mobile"
     ],
     "extensionProperties": [],
@@ -47283,22 +47284,6 @@
           "numberProperties": [],
           "stringProperties": [],
           "initialVariables": []
-        },
-        {
-          "angle": 0,
-          "customSize": false,
-          "depth": 9.275844810159482,
-          "height": 30.999999999999996,
-          "layer": "UI",
-          "name": "Coin",
-          "persistentUuid": "f50ed303-2126-42de-bc74-f78ec1b86de4",
-          "width": 29.482750369101787,
-          "x": -438.47364915529886,
-          "y": 699.6271509849621,
-          "zOrder": 0,
-          "numberProperties": [],
-          "stringProperties": [],
-          "initialVariables": []
         }
       ],
       "editionSettings": {