Revert "fixoptminizer _set_auxiliary_var bug (#50335)"

This reverts commit c44005f0.

python/paddle/distributed/fleet/meta_optimizers/ascend/ascend_optimizer.py

@@ -236,10 +236,6 @@ class AscendOptimizer(Optimizer):
                 ret_list.append(var)
         return ret_list
 
-    def _set_auxiliary_var(self, key, val):
-        super()._set_auxiliary_var(key, val)
-        self.inner_opt._set_auxiliary_var(key, val)
-
     def minimize(
         self,
         loss,

python/paddle/distributed/fleet/meta_optimizers/meta_optimizer_base.py

@@ -25,10 +25,6 @@ class MetaOptimizerBase(Optimizer):
         self.meta_optimizers_white_list = []
         self.meta_optimizers_black_list = []
 
-    def _set_auxiliary_var(self, key, val):
-        super()._set_auxiliary_var(key, val)
-        self.inner_opt._set_auxiliary_var(key, val)
-
     def _set_basic_info(
         self, loss, role_maker, user_defined_optimizer, user_defined_strategy
     ):

python/paddle/distributed/fleet/meta_parallel/sharding/group_sharded_optimizer_stage2.py

@@ -203,10 +203,6 @@ class GroupShardedOptimizerStage2(Optimizer):
         # Update optimizer parameters and adjust parameter storage and use according to rank.
         self._update_opt_status()
 
-    def _set_auxiliary_var(self, key, val):
-        super()._set_auxiliary_var(key, val)
-        self._optim._set_auxiliary_var(key, val)
-
     @paddle.autograd.no_grad()
     def _sync_params_and_buffers(self):
         """

python/paddle/incubate/optimizer/lookahead.py

@@ -144,10 +144,6 @@ class LookAhead(Optimizer):
         self._global_step_var = None
         self._k_var = None
 
-    def _set_auxiliary_var(self, key, val):
-        super()._set_auxiliary_var(key, val)
-        self.inner_optimizer._set_auxiliary_var(key, val)
-
     @framework.dygraph_only
     @imperative_base.no_grad
     def step(self):