chore: update sample app client id

Author: nattb8

sample/Assets/Scripts/SelectAuthMethodScript.cs

@@ -92,11 +92,7 @@ private async void InitialisePassport(string redirectUri = null, string logoutRe
 
             // Initialise Passport
             string environment = Immutable.Passport.Model.Environment.SANDBOX;
-#if UNITY_WEBGL
-            string clientId = "UnB98ngnXIZIEJWGJOjVe1BpCx5ix7qc";
-#else
             string clientId = "mp6rxfMDwwZDogcdgNrAaHnG0qMlXuMK";
-#endif
             Passport passport = await Passport.Init(clientId, environment, redirectUri, logoutRedirectUri);
 
             // Navigate to the unauthenticated scene after initialising Passport