navd: fix hysteresis when reaching destination (#29032)

fix destination hysteresis when reaching destination

selfdrive/navd/navd.py

@@ -274,11 +274,11 @@ class RouteEngine:
         self.reset_recompute_limits()
       else:
         cloudlog.warning("Destination reached")
-        Params().remove("NavDestination")
 
         # Clear route if driving away from destination
         dist = self.nav_destination.distance_to(self.last_position)
         if dist > REROUTE_DISTANCE:
+          self.params.remove("NavDestination")
           self.clear_route()
 
   def send_route(self):