Refactor

Author: ethanhann

src/InEngine.Core/StreamCopy.cs

@@ -1,22 +1,15 @@
-using System;
-using System.IO;
-using System.IO.Compression;
-using System.Text;
+using System.IO;
 
 namespace InEngine.Core
 {
-    public class StreamCopy
+    public static class StreamCopy
     {
         public static void FromTo(Stream src, Stream dest)
         {
             byte[] bytes = new byte[4096];
-
             int cnt;
-
             while ((cnt = src.Read(bytes, 0, bytes.Length)) != 0)
-            {
                 dest.Write(bytes, 0, cnt);
-            }
         }
     }
 }