removed the extra stats table

server.go

@@ -93,9 +93,6 @@ type Server struct {
 		routes atomic.Int64
 		peers atomic.Int64
 		ssh_proxy_sessions atomic.Int64
-
-		extra_mtx sync.Mutex
-		extra map[string]int64
 	}
 
 	wpx_resp_tf     ServerWpxResponseTransformer
@@ -1145,7 +1142,6 @@ func NewServer(ctx context.Context, logger Logger, ctl_addrs []string, rpc_addrs
 	s.stats.routes.Store(0)
 	s.stats.peers.Store(0)
 	s.stats.ssh_proxy_sessions.Store(0)
-	s.stats.extra = make(map[string]int64, 64)
 
 	return &s, nil
 
@@ -1661,12 +1657,6 @@ func (s *Server) WriteLog(id string, level LogLevel, fmtstr string, args ...inte
 	s.log.Write(id, level, fmtstr, args...)
 }
 
-func (s *Server) SetExtraStat(key string, val int64) {
-	s.stats.extra_mtx.Lock()
-	s.stats.extra[key] = val
-	s.stats.extra_mtx.Unlock()
-}
-
 func (s *Server) AddCtlHandler(path string, handler ServerHttpHandler) {
 	s.ctl_mux.Handle(s.ctl_prefix + "/_ctl" + path, s.wrap_http_handler(handler))
 }