---- Move TcpSocket's m_retxEvent.Cancel() to ~TcpSocket(), so that it is executed by all possible code paths leading up to a TcpSocket deallocation. user: Gustavo J. A. M. Carneiro <gjc at inescporto.pt> files: src/internet-node/tcp-socket.cc url: http://code.nsnam.org/ns-3-dev/rev/d4217d7ba4ba