[skip ci] swap summary writer and step increment order

ml-agents/mlagents/trainers/trainer/rl_trainer.py

         """
         return False
 
-    # @abc.abstractmethod
-        self._maybe_write_summary(self.get_step + self.trainer_parameters["buffer_size"])
+        self._maybe_write_summary(self.get_step + self.trainer_parameters["buffer_size"])
 
     def _increment_step(self, n_steps: int, name_behavior_id: str) -> None:
         """
         :param trajectory: The Trajectory tuple containing the steps to be processed.
         """
         pass
-        # self._maybe_write_summary(self.get_step + len(trajectory.steps))
-        # self._increment_step(len(trajectory.steps), trajectory.behavior_id)
 
     def _maybe_write_summary(self, step_after_process: int) -> None:
         """