Removing unnecessary outpipe values that had been used for reconnecting existing pipes - no longer needed when using a pipe term for the delay_attach situation.

src/session_base.hpp

@@ -104,9 +104,6 @@ namespace zmq
         //  Pipe connecting the session to its socket.
         zmq::pipe_t *pipe;
 
-        //  Socket end of pipe, in case of reconnection
-        zmq::pipe_t *outpipe; 
-
         //  This flag is true if the remainder of the message being processed
         //  is still in the in pipe.
         bool incomplete_in;