drop old router var special case

@masenf and I fixed some var dependency issues a while ago

reflex/state.py

@@ -1330,11 +1330,6 @@ class BaseState(Base, ABC, extra=pydantic.Extra.allow):
             self.dirty_vars.add(name)
             self._mark_dirty()
 
-        # For now, handle router_data updates as a special case
-        if name == constants.ROUTER_DATA:
-            self.dirty_vars.add(name)
-            self._mark_dirty()
-
     def reset(self):
         """Reset all the base vars to their default values."""
         # Reset the base vars.