chore: drop jsonserialize and ui from demo.

Author: fadi-george

examples/demo/Packages/manifest.json

@@ -6,8 +6,6 @@
     "com.unity.nuget.newtonsoft-json": "3.2.2",
     "com.unity.modules.accessibility": "1.0.0",
     "com.unity.modules.androidjni": "1.0.0",
-    "com.unity.modules.jsonserialize": "1.0.0",
-    "com.unity.modules.ui": "1.0.0",
     "com.unity.modules.uielements": "1.0.0",
     "com.unity.modules.unitywebrequest": "1.0.0"
   },

examples/demo/Packages/packages-lock.json

@@ -63,7 +63,7 @@
     },
     "com.unity.modules.jsonserialize": {
       "version": "1.0.0",
-      "depth": 0,
+      "depth": 1,
       "source": "builtin",
       "dependencies": {}
     },
@@ -75,7 +75,7 @@
     },
     "com.unity.modules.ui": {
       "version": "1.0.0",
-      "depth": 0,
+      "depth": 1,
       "source": "builtin",
       "dependencies": {}
     },