Revert OutboundTunnelEndpoint changes
brought in in the "redux" checkin Aug. 30. This is classic "research" that shouldn't have gone in and shouldn't be in now. The four ints added per endpoint for stats/logging, and all the logging itself, are not necessary.
Was mentioned somewhere during the 2.4 cycle but didn't happen, so here's its own ticket.
Also remove as no longer req'd:
TunnelDispatcher.java: ctx.statManager().createRateStat("tunnel.outboundTunnelEndpointFwdRIDSM", "OBTE Forwarding RI DSM",