diff --git a/UnityWaitOSRequest.cs b/UnityWaitOSRequest.cs
deleted file mode 100644
index 911424d..0000000
--- a/UnityWaitOSRequest.cs
+++ /dev/null
@@ -1,19 +0,0 @@
-using OnlySocketHttp;
-using UnityEngine;
-
-class UnityWaitOSRequest : CustomYieldInstruction
-{
-	RequestAsync mReqAsync;
-	public UnityWaitOSRequest(RequestAsync reqAsync)
-	{
-		mReqAsync = reqAsync;
-	}
-	~UnityWaitOSRequest()
-	{
-		mReqAsync = null;
-	}
-	public override bool keepWaiting
-	{
-		get { return !mReqAsync.isDone; }
-	}
-}
\ No newline at end of file