diff --git a/Samples/StreamingDemo/TwitterObservable/Class1.cs b/Samples/StreamingDemo/TwitterObservable/Class1.cs
deleted file mode 100644
index 3e10e82c..00000000
--- a/Samples/StreamingDemo/TwitterObservable/Class1.cs
+++ /dev/null
@@ -1,12 +0,0 @@
-using System;
-using System.Collections.Generic;
-using System.Linq;
-using System.Text;
-using System.Threading.Tasks;
-
-namespace TwitterObservable
-{
-    public class Class1
-    {
-    }
-}