remove dy2static test_lac predictor run case (#27844)

* remove test_lac predictor run case

python/paddle/fluid/tests/unittests/dygraph_to_static/test_lac.py

@@ -28,8 +28,6 @@ from paddle.fluid.dygraph import Embedding, Linear, GRUUnit
 from paddle.fluid.dygraph import declarative, ProgramTranslator
 from paddle.fluid.dygraph.io import INFER_MODEL_SUFFIX, INFER_PARAMS_SUFFIX
 
-from predictor_utils import PredictorTools
-
 SEED = 2020
 
 program_translator = ProgramTranslator()
@@ -540,7 +538,6 @@ class TestLACModel(unittest.TestCase):
             dy_pre = self.predict_dygraph(batch)
             st_pre = self.predict_static(batch)
             dy_jit_pre = self.predict_dygraph_jit(batch)
-            predictor_pre = self.predict_analysis_inference(batch)
             self.assertTrue(
                 np.allclose(dy_pre, st_pre),
                 msg="dy_pre:\n {}\n, st_pre: \n{}.".format(dy_pre, st_pre))
@@ -548,10 +545,6 @@ class TestLACModel(unittest.TestCase):
                 np.allclose(dy_jit_pre, st_pre),
                 msg="dy_jit_pre:\n {}\n, st_pre: \n{}.".format(dy_jit_pre,
                                                                st_pre))
-            self.assertTrue(
-                np.allclose(predictor_pre, st_pre),
-                msg="predictor_pre:\n {}\n, st_pre: \n{}.".format(predictor_pre,
-                                                                  st_pre))
 
     def predict_dygraph(self, batch):
         words, targets, length = batch
@@ -602,15 +595,6 @@ class TestLACModel(unittest.TestCase):
 
             return pred_res.numpy()
 
-    def predict_analysis_inference(self, batch):
-        words, targets, length = batch
-
-        output = PredictorTools(self.args.model_save_dir,
-                                self.args.model_filename,
-                                self.args.params_filename, [words, length])
-        out = output()
-        return out
-
 
 if __name__ == "__main__":
     unittest.main()