Remove duplicate file and update ms.date to 2025

Co-authored-by: BillWagner <[email protected]>

Author: Copilot

docs/csharp/language-reference/compiler-messages/cs9036.md

@@ -1,7 +1,7 @@
 ---
 description: "Compiler Error CS9036"
 title: "Compiler Error CS9036"
-ms.date: 05/19/2023
+ms.date: 05/19/2025
 f1_keywords: 
   - "CS9036"
 helpviewer_keywords: