Simplify ccstatusline.cs

remove unnecessary properties

Author: WeihanLi

ai/ccstatusline.cs

@@ -21,10 +21,7 @@
 // Docs: https://code.claude.com/docs/en/statusline
 // ---------------------------------------------------------------------------
 
-#:sdk Microsoft.NET.Sdk
-#:property TargetFramework=net10.0
 #:property Nullable=enable
-#:property StripSymbols=true
 
 using System;
 using System.Diagnostics;