move detectron2 related .autodeps.toml to detectron2

Summary: Pull Request resolved: https://github.com/facebookresearch/d2go/pull/572

Reviewed By: ajinkya-deogade

Differential Revision: D46664313

fbshipit-source-id: acb1876c92c3907eb185dd144782495bda593d23

d2go/quantization/modeling.py

@@ -222,9 +222,9 @@ def add_d2_quant_mapping(mappings):
 def mock_quantization_type(quant_func):
     import builtins
     import functools
+    from unittest import mock
 
     import detectron2.layers as d2l
-    import mock
 
     type_mapping = {d2l.Linear: torch.nn.Linear}
     from d2go.utils.misc import check_version

d2go/utils/helper.py

@@ -10,7 +10,7 @@ from typing import Any, Callable, List, TypeVar
 import detectron2.utils.comm as comm
 import torch
 from detectron2.data import MetadataCatalog
-from detectron2.engine import DefaultTrainer
+from detectron2.engine.defaults import DefaultTrainer
 from detectron2.evaluation import (
     CityscapesInstanceEvaluator,
     CityscapesSemSegEvaluator,