diff --git a/readthedocs/extra/developing/project-structure.rst b/readthedocs/extra/developing/project-structure.rst
index 1bbb07c4..c96a243b 100644
--- a/readthedocs/extra/developing/project-structure.rst
+++ b/readthedocs/extra/developing/project-structure.rst
@@ -33,11 +33,6 @@ The sender makes use of a ``Connection`` class which knows the format in
 which outgoing messages should be sent (how to encode their length and
 their body, if they're further encrypted).
 
-For now, all connection modes make use of the ``extensions/tcpclient``,
-a C#-like ``TcpClient`` to ease working with sockets in Python. All the
-``TcpClient`` know is how to connect through TCP and writing/reading
-from the socket with optional cancel.
-
 Auto-generated code
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