Revert "Merge remote-tracking branch 'diovudau/master'"

This reverts commit bbe8386499621c8e60eebb06d80e966f13a69a95, reversing
changes made to d958df0486.

Change was poorly thought out, unnecessary, ill advised, and poorly implemented, but was accepted in the name of diplomacy. That was a mistake. Reverting.

session-manager/src/nsmd.C

@@ -2137,8 +2137,6 @@ announce_gui( const char *url, bool is_reply )
     else
         osc_server->send( gui_addr, "/nsm/gui/server_announce", "hi" );
 
-    osc_server->send( gui_addr, "/nsm/gui/session/root", session_root );
-
     for ( std::list<Client*>::iterator i = client.begin();
           i != client.end();
           ++i )