fix: remove func didn't use in deflow.

Author: Kin-Zhang

scripts/network/loss_func.py

@@ -8,8 +8,6 @@
 
 """
 import torch
-from assets.cuda.chamfer_cuda import nnChamferDis
-MyCUDAChamferDistance = nnChamferDis()
 
 def deflowLoss(res_dict):
     pred = res_dict['est_flow']
@@ -132,4 +130,4 @@ def evaluate_leaderboard(est_flow, rigid_flow, pc0, gt_flow, is_valid, pts_ids):
     if np.isnan(EPE_Dynamic) or np.isnan(Dynamic_IoU) or np.isnan(EPE_Background_Static) or np.isnan(EPE_Foreground_Static):
         print(res_dict)
 
-    return EPE_Background_Static, EPE_Dynamic, EPE_Foreground_Static, Dynamic_IoU
+    return EPE_Background_Static, EPE_Dynamic, EPE_Foreground_Static, Dynamic_IoU