Fix giou naming bug (#5270)

* Adding multiweight support for shufflenetv2 prototype models

* Revert "Adding multiweight support for shufflenetv2 prototype models"

This reverts commit 31fadbe.

* Adding multiweight support for shufflenetv2 prototype models

* Revert "Adding multiweight support for shufflenetv2 prototype models"

This reverts commit 4e3d900.

* Remove module vs method name clash

Author: jdsgomes

torchvision/ops/__init__.py

@@ -13,7 +13,7 @@
 from .deform_conv import deform_conv2d, DeformConv2d
 from .feature_pyramid_network import FeaturePyramidNetwork
 from .focal_loss import sigmoid_focal_loss
-from .generalized_box_iou_loss import generalized_box_iou_loss
+from .giou_loss import generalized_box_iou_loss
 from .misc import FrozenBatchNorm2d, ConvNormActivation, SqueezeExcitation
 from .poolers import MultiScaleRoIAlign
 from .ps_roi_align import ps_roi_align, PSRoIAlign