Merge ascend_optimizer and ascend_parser. (#30776)

Merge ascend_optimizer and ascend_parser.

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

@@ -233,6 +233,7 @@ class AscendOptimizer(Optimizer):
         self.parser = AscendIRParser()
 
         input_varlist = self._get_input_varlist(main_block.program)
+
         startup_graph, main_graph = self.parser.parse_program(
             startup_program, main_block.program, input_varlist, self.fetch_list)