remove duplicated code

Author: xadupre

tests/function_libs/torch_lib/e2e_ops_tests.py

@@ -148,12 +148,6 @@ def forward(self, x, y):
             torch.arange(4, dtype=torch.float32).reshape((2, 2)),
             torch.arange(6, dtype=torch.float32).reshape((2, 3)),
         )
-        onnx_program = torch.onnx.export(
-            Model(),
-            inputs,
-            dynamo=True,
-            optimize=False,
-        )
         onnx_program = torch.onnx.export(
             Model(),
             inputs,