#7592: remove duplicate description.

Doc/library/ssl.rst

@@ -274,14 +274,6 @@ SSLSocket Objects
                 else:
                     raise
 
-.. method:: SSLSocket.unwrap()
-
-   Performs the SSL shutdown handshake, which removes the TLS layer from the
-   underlying socket, and returns the underlying socket object.  This can be
-   used to go from encrypted operation over a connection to unencrypted.  The
-   returned socket should always be used for further communication with the
-   other side of the connection, rather than the original socket
-
 .. method:: SSLSocket.getpeercert(binary_form=False)
 
    If there is no certificate for the peer on the other end of the connection,