refactor: streamline TOC workflow and remove duplicate code

Author: IShix-g

.github/workflows/build-toc-generator.yaml

@@ -1,4 +1,4 @@
-name: TOC Generation Workflow Completed
+name: TOC Generation Workflow
 
 on:
   workflow_dispatch:

Packages/SimplePackage/Scripts/TestScript.cs

@@ -4,6 +4,5 @@ namespace SimplePackage.Scripts
     public sealed class TestScript
     {
         public string Message => "Hello World! from Test simple package";
-        public string Message2 => "Hello World! from Test simple package";
     }
 }