lib subdir is not needed anymore
diff --git a/csharp/lib/README.md b/csharp/lib/README.md
deleted file mode 100644
index d31885b..0000000
--- a/csharp/lib/README.md
+++ /dev/null
@@ -1,13 +0,0 @@
-This directory used to contain the binary dependencies, but they were removed during a cleanup associated with importing the project
-into google/protobuf repository. Before we figure a better way to manage the dependencies, you will have to manually download the dependencies
-to be able to build the test projects:
-
-1. Download https://github.com/jskeet/protobuf-csharp-port/archive/2.4.1.555.zip
-2. Open the archive and copy following files into this directory:
- * `lib/Microsoft.Silverlight.Testing/`
- * `lib/NUnit/`
- * `lib/proto.exe`
-
-After that, you should be able to fully build the C# protobufs Visual Studio solutions.
-
-TODO(jtattermusch): the way we pull in dependencies needs to change
