revert submodules versions

dygraph/PaddleClas

@@ -1 +1 @@
-Subproject commit b5de5322b9f40449db4d55078044a1e1b44c0644
+Subproject commit 725a8ffda618eb8da16171a6b2006f6ab85e9928

dygraph/PaddleDetection

@@ -1 +1 @@
-Subproject commit a065c4c0eb95e1a201615304eaa72f36bc91d699
+Subproject commit abc2e7f3dd7c15b87831d75832389f1d706ddd48

dygraph/PaddleSeg

@@ -1 +1 @@
-Subproject commit 56793289eda25dd2034160a6538fa43808c553f3
+Subproject commit 2dc99b8dd4dfb1468eed238b46f395e3100695e1

dygraph/paddlex/cv/models/detector.py

@@ -19,7 +19,6 @@ import copy
 import os
 import os.path as osp
 
-from paddle.io import DistributedBatchSampler, DataLoader
 from paddle.static import InputSpec
 import paddlex
 import paddlex.utils.logging as logging
@@ -27,7 +26,6 @@ from paddlex.cv.nets.ppdet.modeling.proposal_generator.target_layer import BBoxA
 from paddlex.cv.nets.ppdet.modeling import *
 from paddlex.cv.nets.ppdet.modeling.post_process import *
 from paddlex.cv.nets.ppdet.modeling.layers import YOLOBox, MultiClassNMS, RCNNBox
-from paddlex.utils import get_single_card_bs, _get_shared_memory_size_in_M
 from paddlex.cv.transforms.operators import _NormalizeBox, _PadBox, _BboxXYXY2XYWH
 from paddlex.cv.transforms.batch_operators import BatchCompose, BatchRandomResize, BatchRandomResizeByShort, _BatchPadding, _Gt2YoloTarget, _Permute
 from paddlex.cv.transforms import arrange_transforms